+2001-07-23 Tom Tromey <tromey@redhat.com>
+
+ * gcj/javaprims.h: Rebuilt class list.
+ * Makefile.in: Rebuilt.
+ * Makefile.am (core_java_source_files): Added VMClassLoader.
+ * java/lang/VMClassLoader.java: New file.
+ * java/lang/Boolean.java: Merged with Classpath.
+ * java/lang/Byte.java: Merged with Classpath.
+ * java/lang/Integer.java: Merged with Classpath.
+ * java/lang/Long.java: Merged with Classpath.
+ * java/lang/Number.java: Merged with Classpath.
+ * java/lang/Short.java: Merged with Classpath.
+
2001-07-22 Jeff Sturm <jsturm@one-point.com>
* configure.host: Enable hash synchronization for alpha*-*.
java/lang/UnsupportedOperationException.java \
java/lang/VerifyError.java \
java/lang/VirtualMachineError.java \
+java/lang/VMClassLoader.java \
java/lang/Void.java \
java/io/BufferedInputStream.java \
java/io/BufferedOutputStream.java \
java/lang/UnsupportedOperationException.java \
java/lang/VerifyError.java \
java/lang/VirtualMachineError.java \
+java/lang/VMClassLoader.java \
java/lang/Void.java \
java/io/BufferedInputStream.java \
java/io/BufferedOutputStream.java \
.deps/java/lang/ThreadLocal.P .deps/java/lang/Throwable.P \
.deps/java/lang/UnknownError.P .deps/java/lang/UnsatisfiedLinkError.P \
.deps/java/lang/UnsupportedOperationException.P \
-.deps/java/lang/VerifyError.P .deps/java/lang/VirtualMachineError.P \
-.deps/java/lang/Void.P .deps/java/lang/dtoa.P .deps/java/lang/e_acos.P \
+.deps/java/lang/VMClassLoader.P .deps/java/lang/VerifyError.P \
+.deps/java/lang/VirtualMachineError.P .deps/java/lang/Void.P \
+.deps/java/lang/dtoa.P .deps/java/lang/e_acos.P \
.deps/java/lang/e_asin.P .deps/java/lang/e_atan2.P \
.deps/java/lang/e_exp.P .deps/java/lang/e_fmod.P \
.deps/java/lang/e_log.P .deps/java/lang/e_pow.P \
LIBGCJ_CFLAGS = @LIBGCJ_CFLAGS@
LIBGCJ_CXXFLAGS = @LIBGCJ_CXXFLAGS@
LIBGCJ_JAVAFLAGS = @LIBGCJ_JAVAFLAGS@
+LIBICONV = @LIBICONV@
LIBLTDL = @LIBLTDL@
LIBTOOL = @LIBTOOL@
LN_S = @LN_S@
class Thread;
class ThreadDeath;
class ThreadGroup;
+ class ThreadLocal;
+ class ThreadLocal$Value;
class Throwable;
class UnknownError;
class UnsatisfiedLinkError;
class UnsupportedOperationException;
+ class VMClassLoader;
class VerifyError;
class VirtualMachineError;
class Void;
-/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
+/* Boolean.java -- object wrapper for boolean
+ Copyright (C) 1998, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
package java.lang;
import java.io.Serializable;
-
+
/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date September 3, 1998.
- */
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
- */
-
-public final class Boolean extends Object implements Serializable
+ * Instances of class <code>Boolean</code> represent primitive
+ * <code>boolean</code> values.
+ *
+ * @author Paul Fisher
+ * @since JDK1.0
+ */
+public final class Boolean implements Serializable
{
- public static final Boolean FALSE = new Boolean(false);
- public static final Boolean TRUE = new Boolean(true);
-
- // This initialization is seemingly circular, but it is accepted
- // by javac, and is handled specially by gcc.
- public static final Class TYPE = boolean.class;
-
- /* The boolean value of the instance. */
- private boolean value;
-
- private static final long serialVersionUID = -3665804199014368530L;
-
- public Boolean(boolean boolVal)
- {
- value = boolVal;
- }
-
- public Boolean(String strVal)
- {
- value = (strVal == null ? false : strVal.equalsIgnoreCase("true"));
- }
-
- public boolean booleanValue()
- {
- return value;
- }
-
- public boolean equals(Object obj)
- {
- /* Don't need to compare obj to null as instanceof will do this. */
- if (obj instanceof Boolean)
- return value == ((Boolean) obj).value;
- return false;
- }
-
- public static boolean getBoolean(String property)
- {
- /* TBD: If a security manager exists and it doesn't permit accessing
- * the property, it will throw an exception. Should we catch it?
+ static final long serialVersionUID = -3665804199014368530L;
+
+ /**
+ * This field is a <code>Boolean</code> object representing the
+ * primitive value <code>true</code>. This instance is returned
+ * by the static <code>valueOf()</code> methods if they return
+ * a <code>Boolean</code> representing <code>true</code>.
+ */
+ public static final Boolean TRUE = new Boolean(true);
+
+ /**
+ * This field is a <code>Boolean</code> object representing the
+ * primitive value <code>false</code>. This instance is returned
+ * by the static <code>valueOf()</code> methods if they return
+ * a <code>Boolean</code> representing <code>false</code>.
+ */
+ public static final Boolean FALSE = new Boolean(false);
+
+ /**
+ * The primitive type <code>boolean</code> is represented by this
+ * <code>Class</code> object.
+ */
+ public static final Class TYPE = VMClassLoader.getPrimitiveClass("boolean");
+
+ /**
+ * The immutable value of this Boolean.
+ */
+ private final boolean value;
+
+ /**
+ * Create a <code>Boolean</code> object representing the value of the
+ * argument <code>value</code>. In general the use of the static
+ * method <code>valueof(boolean)</code> is more efficient since it will
+ * not create a new object.
+ *
+ * @param value the primitive value of this <code>Boolean</code>
+ */
+ public Boolean(boolean value) {
+ this.value = value;
+ }
+
+ /**
+ * Creates a <code>Boolean</code> object representing the primitive
+ * <code>true</code> if and only if <code>s</code> matches
+ * the string "true" ignoring case, otherwise the object will represent
+ * the primitive <code>false</code>. In general the use of the static
+ * method <code>valueof(String)</code> is more efficient since it will
+ * not create a new object.
+ *
+ * @param s the <code>String</code> representation of <code>true</code>
+ * or false
*/
- try
- {
- String val = System.getProperty(property);
- return val == null ? false : val.equalsIgnoreCase("true");
- }
- catch (SecurityException e)
- {
- return false;
- }
- }
-
- public int hashCode()
- {
- /* These values are from the Java Lang. Spec. (Sec 20.4.7).
- * TBD: They could be made private static final fields but they're only
- * used here (and shouldn't be used anywhere else), though it might be
- * useful to grep on something like JAVA_HASH_* values for us as
- * developers.
+ public Boolean(String s) {
+ value = "true".equalsIgnoreCase(s);
+ }
+
+ /**
+ * Return the primitive <code>boolean</code> value of this
+ * <code>Boolean</code> object.
+ */
+ public boolean booleanValue() {
+ return value;
+ }
+
+ /**
+ * Returns the Boolean <code>TRUE</code> if the given boolean is
+ * <code>true</code>, otherwise it will return the Boolean
+ * <code>FALSE</code>.
+ *
+ * @since 1.4
+ */
+ public static Boolean valueOf(boolean b) {
+ return b ? TRUE : FALSE;
+ }
+
+ /**
+ * Returns the Boolean <code>TRUE</code> if and only if the given
+ * String is equal, ignoring case, to the the String "true", otherwise
+ * it will return the Boolean <code>FALSE</code>.
+ */
+ public static Boolean valueOf(String s) {
+ return "true".equalsIgnoreCase(s) ? TRUE : FALSE;
+ }
+
+ /**
+ * Returns the integer <code>1231</code> if this object represents
+ * the primitive <code>true</code> and the integer <code>1237</code>
+ * otherwise.
+ */
+ public int hashCode() {
+ return (value) ? 1231 : 1237;
+ }
+
+ /**
+ * If the <code>obj</code> is an instance of <code>Boolean</code> and
+ * has the same primitive value as this object then <code>true</code>
+ * is returned. In all other cases, including if the <code>obj</code>
+ * is <code>null</code>, <code>false</code> is returned.
+ *
+ * @param obj possibly an instance of any <code>Class</code>
+ * @return <code>false</code> is <code>obj</code> is an instance of
+ * <code>Boolean</code> and has the same primitive value as this
+ * object.
+ */
+ public boolean equals(Object obj) {
+ return (obj instanceof Boolean && value == ((Boolean)obj).value);
+ }
+
+ /**
+ * If the value of the system property <code>name</code> matches
+ * "true" ignoring case then the function returns <code>true</code>.
+ */
+ public static boolean getBoolean(String name) {
+ String val = System.getProperty(name);
+ return ("true".equalsIgnoreCase(val));
+ }
+
+ /**
+ * Returns "true" if the value of the give boolean is <code>true</code> and
+ * returns "false" if the value of the given boolean is <code>false</code>.
+ *
+ * @since 1.4
+ */
+ public static String toString(boolean b)
+ {
+ return b ? "true" : "false";
+ }
+
+ /**
+ * Returns "true" if the value of this object is <code>true</code> and
+ * returns "false" if the value of this object is <code>false</code>.
*/
- return value ? 1231 : 1237;
- }
-
- public String toString()
- {
- return value ? "true" : "false";
- }
-
- public static Boolean valueOf(String str)
- {
- if (str == null)
- return FALSE;
- else
- /* This returns a Boolean (big B), not a boolean (little b). */
- return str.equalsIgnoreCase("true") ? TRUE : FALSE;
- }
+ public String toString()
+ {
+ return (value) ? "true" : "false";
+ }
}
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
+/* Byte.java -- object wrapper for byte
+ Copyright (C) 1998, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
package java.lang;
/**
- * @author Per Bothner <bothner@cygnus.com>
- * @date April 17, 1998.
+ * Instances of class <code>Byte</code> represent primitive <code>byte</code>
+ * values.
+ *
+ * Additionally, this class provides various helper functions and variables
+ * useful to bytes.
+ *
+ * @author Paul Fisher
+ * @author John Keiser
+ * @author Per Bothner
+ * @since JDK 1.0
*/
-/* Written using "Java Class Libraries", 2nd edition, plus online
- * API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
- * Includes JDK 1.2 methods.
- */
-
-public final class Byte extends Number implements Comparable
+public final class Byte extends Number implements Comparable
{
- byte value;
+ static final long serialVersionUID = -7183698231559129828L;
- public final static byte MIN_VALUE = -128;
- public final static byte MAX_VALUE = 127;
+ /**
+ * The minimum value a <code>byte</code> can represent is -128.
+ */
+ public static final byte MIN_VALUE = -128;
- // This initialization is seemingly circular, but it is accepted
- // by javac, and is handled specially by gcc.
- public static final Class TYPE = byte.class;
+ /**
+ * The maximum value a <code>byte</code> can represent is 127.
+ */
+ public static final byte MAX_VALUE = 127;
- private static final long serialVersionUID = -7183698231559129828L;
+ /**
+ * The primitive type <code>byte</code> is represented by this
+ * <code>Class</code> object.
+ */
+ public static final Class TYPE = VMClassLoader.getPrimitiveClass("byte");
- public Byte(byte value)
+ /**
+ * The immutable value of this Byte.
+ */
+ private final byte value;
+
+ /**
+ * Create a <code>Byte</code> object representing the value of the
+ * <code>byte</code> argument.
+ *
+ * @param value the value to use
+ */
+ public Byte(byte value)
{
this.value = value;
}
- public Byte(String str)
- throws NumberFormatException
+ /**
+ * Create a <code>Byte</code> object representing the value specified
+ * by the <code>String</code> argument.
+ *
+ * @param s the string to convert.
+ */
+ public Byte(String s) throws NumberFormatException
{
- this.value = parseByte(str, 10);
+ value = parseByte(s, 10);
}
- public byte byteValue()
+ /**
+ * Return a hashcode representing this Object.
+ *
+ * <code>Byte</code>'s hash code is calculated by simply returning its
+ * value.
+ *
+ * @return this Object's hash code.
+ */
+ public int hashCode()
{
return value;
}
- public short shortValue()
+ /**
+ * Returns <code>true</code> if <code>obj</code> is an instance of
+ * <code>Byte</code> and represents the same byte value.
+ * @return whether these Objects are semantically equal.
+ */
+ public boolean equals(Object obj)
{
- return value;
+ return ((obj instanceof Byte) && (value == ((Byte)obj).byteValue()));
}
- public int intValue()
+ /**
+ * Converts the <code>byte</code> to a <code>String</code> and assumes
+ * a radix of 10.
+ * @param i the <code>byte</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(byte i)
{
- return value;
+ return Integer.toString ((int) i);
}
- public long longValue ()
+ /**
+ * Converts the <code>Byte</code> value to a <code>String</code> and
+ * assumes a radix of 10.
+ * @return the <code>String</code> representation of this <code>Byte</code>.
+ */
+ public String toString()
{
- return value;
+ return Integer.toString ((int) value);
}
-
- public float floatValue ()
+
+ /**
+ * Creates a new <code>Byte</code> object using the <code>String</code>,
+ * assuming a radix of 10.
+ * @param s the <code>String</code> to convert.
+ * @return the new <code>Byte</code>.
+ * @see #Byte(java.lang.String)
+ * @see #parseByte(java.lang.String)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>byte</code>.
+ */
+ public static Byte valueOf(String s) throws NumberFormatException
{
- return (float) value;
+ return new Byte(parseByte(s));
}
- public double doubleValue ()
+ /**
+ * Creates a new <code>Byte</code> object using the <code>String</code>
+ * and specified radix (base).
+ * @param s the <code>String</code> to convert.
+ * @param radix the radix (base) to convert with.
+ * @return the new <code>Byte</code>.
+ * @see #parseByte(java.lang.String,int)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>byte</code>.
+ */
+ public static Byte valueOf(String s, int radix)
+ throws NumberFormatException
{
- return (double) value;
+ return new Byte(parseByte(s, radix));
}
- public static Byte decode(String str)
- throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into a <code>byte</code>.
+ * This function assumes a radix of 10.
+ *
+ * @param s the <code>String</code> to convert
+ * @return the <code>byte</code> value of the <code>String</code>
+ * argument.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>byte</code>.
+ */
+ public static byte parseByte(String s) throws NumberFormatException
{
- int i = (Integer.decode(str)).intValue();
- if (i < MIN_VALUE || i > MAX_VALUE)
- throw new NumberFormatException();
- return new Byte((byte) i);
+ return parseByte(s, 10);
}
- public static byte parseByte(String str, int radix)
- throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into a <code>byte</code>
+ * using the specified radix (base).
+ *
+ * @param str the <code>String</code> to convert
+ * @param radix the radix (base) to use in the conversion
+ * @return the <code>String</code> argument converted to </code>byte</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>byte</code>.
+ */
+ public static byte parseByte(String str, int radix)
+ throws NumberFormatException
{
int i = Integer.parseInt(str, radix);
if (i < MIN_VALUE || i > MAX_VALUE)
return (byte) i;
}
- public static byte parseByte(String str)
- throws NumberFormatException
+ /**
+ * Convert the specified <code>String</code> into a <code>Byte</code>.
+ * The <code>String</code> may represent decimal, hexadecimal, or
+ * octal numbers.
+ *
+ * The <code>String</code> argument is interpreted based on the leading
+ * characters. Depending on what the String begins with, the base will be
+ * interpreted differently:
+ *
+ * <table>
+ * <tr><th>Leading<br>Characters</th><th>Base</th></tr>
+ * <tr><td>#</td><td>16</td></tr>
+ * <tr><td>0x</td><td>16</td></tr>
+ * <tr><td>0X</td><td>16</td></tr>
+ * <tr><td>0</td><td>8</td></tr>
+ * <tr><td>Anything<br>Else</td><td>10</td></tr>
+ * </table>
+ *
+ * @param str the <code>String</code> to interpret.
+ * @return the value of the String as a <code>Byte</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>byte</code>.
+ */
+ public static Byte decode(String str) throws NumberFormatException
{
- return parseByte(str, 10);
+ int i = (Integer.decode(str)).intValue();
+ if (i < MIN_VALUE || i > MAX_VALUE)
+ throw new NumberFormatException();
+ return new Byte((byte) i);
}
-
- public static Byte valueOf(String str, int radix)
- throws NumberFormatException
+
+ /** Return the value of this <code>Byte</code> as an <code>short</code>.
+ ** @return the value of this <code>Byte</code> as an <code>short</code>.
+ **/
+ public byte byteValue()
{
- return new Byte(parseByte(str, radix));
+ return value;
}
- public static Byte valueOf(String str)
- throws NumberFormatException
+ /** Return the value of this <code>Byte</code> as an <code>short</code>.
+ ** @return the value of this <code>Byte</code> as an <code>short</code>.
+ **/
+ public short shortValue()
{
- return valueOf(str, 10);
+ return value;
}
- // Added in JDK 1.2
- public int compareTo(Byte anotherByte)
+ /** Return the value of this <code>Byte</code> as an <code>int</code>.
+ ** @return the value of this <code>Byte</code> as an <code>int</code>.
+ **/
+ public int intValue()
{
- return this.value - anotherByte.value;
+ return value;
}
- // Added in JDK 1.2
- /** @throws ClassCastException */
- public int compareTo(Object o)
+ /** Return the value of this <code>Byte</code> as a <code>long</code>.
+ ** @return the value of this <code>Byte</code> as a <code>long</code>.
+ **/
+ public long longValue()
{
- return this.value - ((Byte) o).value;
+ return value;
}
- public boolean equals(Object obj)
+ /** Return the value of this <code>Byte</code> as a <code>float</code>.
+ ** @return the value of this <code>Byte</code> as a <code>float</code>.
+ **/
+ public float floatValue()
{
- return (obj instanceof Byte) && ((Byte)obj).value == value;
+ return value;
}
- // Verified that hashCode is returns plain value (see Boolean_1 test).
- public int hashCode()
+ /** Return the value of this <code>Byte</code> as a <code>double</code>.
+ ** @return the value of this <code>Byte</code> as a <code>double</code>.
+ **/
+ public double doubleValue()
{
return value;
}
-
- public String toString()
+
+ /**
+ * Compare two Bytes numerically by comparing their
+ * <code>byte</code> values.
+ * @return a positive value if this <code>Byte</code> is greater
+ * in value than the argument <code>Byte</code>; a negative value
+ * if this <code>Byte</code> is smaller in value than the argument
+ * <code>Byte</code>; and <code>0</code>, zero, if this
+ * <code>Byte</code> is equal in value to the argument
+ * <code>Byte</code>.
+ */
+ public int compareTo(Byte b)
{
- return Integer.toString((int) value);
+ return (int)(value - b.byteValue());
}
-
- public static String toString(byte value)
+
+ /**
+ * Behaves like <code>compareTo(java.lang.Byte)</code> unless the Object
+ * is not a <code>Byte</code>. Then it throws a
+ * <code>ClassCastException</code>.
+ * @exception ClassCastException if the argument is not a
+ * <code>Byte</code>.
+ */
+ public int compareTo(Object o)
{
- return Integer.toString((int) value);
+ return compareTo((Byte)o);
}
}
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
+/* java.lang.Integer
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
package java.lang;
/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date September 11, 1998.
+ * Instances of class <code>Integer</code> represent primitive
+ * <code>int</code> values.
+ *
+ * Additionally, this class provides various helper functions and variables
+ * related to ints.
+ *
+ * @author Paul Fisher
+ * @author John Keiser
+ * @author Warren Levy
+ * @since JDK 1.0
*/
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
- */
-
public final class Integer extends Number implements Comparable
{
- public static final int MAX_VALUE = 0x7FFFFFFF;
- public static final int MIN_VALUE = 0x80000000;
-
- // This initialization is seemingly circular, but it is accepted
- // by javac, and is handled specially by gcc.
- public static final Class TYPE = int.class;
-
- /* The int value of the instance. */
- private int value;
-
+ // compatible with JDK 1.0.2+
private static final long serialVersionUID = 1360826667806852920L;
- public Integer(int val)
+ /**
+ * The minimum value an <code>int</code> can represent is -2147483648.
+ */
+ public static final int MIN_VALUE = 0x80000000;
+
+ /**
+ * The maximum value an <code>int</code> can represent is 2147483647.
+ */
+ public static final int MAX_VALUE = 0x7fffffff;
+
+ /**
+ * The primitive type <code>int</code> is represented by this
+ * <code>Class</code> object.
+ */
+ public static final Class TYPE = VMClassLoader.getPrimitiveClass ("int");
+
+ /**
+ * The immutable value of this Integer.
+ */
+ private final int value;
+
+ /**
+ * Create an <code>Integer</code> object representing the value of the
+ * <code>int</code> argument.
+ *
+ * @param value the value to use
+ */
+ public Integer(int value)
{
- value = val;
+ this.value = value;
}
- public Integer(String str) throws NumberFormatException
+ /**
+ * Create an <code>Integer</code> object representing the value of the
+ * argument after conversion to an <code>int</code>.
+ *
+ * @param s the string to convert.
+ */
+ public Integer(String s) throws NumberFormatException
{
- value = parseInt(str, 10);
+ value = parseInt(s, 10);
}
- public byte byteValue()
+ /**
+ * Return a hashcode representing this Object.
+ *
+ * <code>Integer</code>'s hash code is calculated by simply returning its
+ * value.
+ *
+ * @return this Object's hash code.
+ */
+ public int hashCode()
{
- return (byte) value;
+ return value;
}
- public double doubleValue()
+ /**
+ * If the <code>Object</code> is not <code>null</code>, is an
+ * <code>instanceof</code> <code>Integer</code>, and represents
+ * the same primitive <code>int</code> value return
+ * <code>true</code>. Otherwise <code>false</code> is returned.
+ */
+ public boolean equals(Object obj)
{
- return (double) value;
+ return obj instanceof Integer && value == ((Integer)obj).value;
}
- public float floatValue()
+ /**
+ * Get the specified system property as an <code>Integer</code>.
+ *
+ * The <code>decode()</code> method will be used to interpret the value of
+ * the property.
+ * @param nm the name of the system property
+ * @return the system property as an <code>Integer</code>, or
+ * <code>null</code> if the property is not found or cannot be
+ * decoded as an <code>Integer</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see #decode(int)
+ */
+ public static Integer getInteger(String nm)
{
- return (float) value;
+ return getInteger(nm, null);
}
- public int intValue()
+ /**
+ * Get the specified system property as an <code>Integer</code>, or use a
+ * default <code>int</code> value if the property is not found or is not
+ * decodable.
+ *
+ * The <code>decode()</code> method will be used to interpret the value of
+ * the property.
+ *
+ * @param nm the name of the system property
+ * @param val the default value to use if the property is not found or not
+ * a number.
+ * @return the system property as an <code>Integer</code>, or the default
+ * value if the property is not found or cannot be decoded as an
+ * <code>Integer</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see #decode(int)
+ * @see #getInteger(java.lang.String,java.lang.Integer)
+ */
+ public static Integer getInteger(String nm, int val)
{
- return value;
+ Integer result = getInteger(nm, null);
+ return (result == null) ? new Integer(val) : result;
}
- public long longValue()
+ /**
+ * Get the specified system property as an <code>Integer</code>, or use a
+ * default <code>Integer</code> value if the property is not found or is
+ * not decodable.
+ *
+ * The <code>decode()</code> method will be used to interpret the value of
+ * the property.
+ *
+ * @param nm the name of the system property
+ * @param val the default value to use if the property is not found or not
+ * a number.
+ * @return the system property as an <code>Integer</code>, or the default
+ * value if the property is not found or cannot be decoded as an
+ * <code>Integer</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see #decode(int)
+ * @see #getInteger(java.lang.String,int)
+ */
+ public static Integer getInteger(String nm, Integer def)
{
- return value;
+ String val = System.getProperty(nm);
+ if (val == null) return def;
+ try
+ {
+ return decode(nm);
+ }
+ catch (NumberFormatException e)
+ {
+ return def;
+ }
}
- public short shortValue()
+ private static String toUnsignedString(int num, int exp)
{
- return (short) value;
+ // Use an array large enough for a binary number.
+ int radix = 1 << exp;
+ int mask = radix - 1;
+ char[] buffer = new char[32];
+ int i = 32;
+ do
+ {
+ buffer[--i] = Character.forDigit(num & mask, radix);
+ num = num >>> exp;
+ }
+ while (num != 0);
+
+ return String.valueOf(buffer, i, 32-i);
}
- // Added in JDK 1.2
- public int compareTo(Integer anotherInteger)
+ /**
+ * Converts the <code>int</code> to a <code>String</code> assuming it is
+ * unsigned in base 16.
+ * @param i the <code>int</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toHexString(int i)
{
- if (this.value == anotherInteger.value)
- return 0;
+ return toUnsignedString(i, 4);
+ }
- // Returns just -1 or 1 on inequality; doing math might overflow the int.
- if (this.value > anotherInteger.value)
- return 1;
+ /**
+ * Converts the <code>int</code> to a <code>String</code> assuming it is
+ * unsigned in base 8.
+ * @param i the <code>int</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toOctalString(int i)
+ {
+ return toUnsignedString(i, 3);
+ }
- return -1;
+ /**
+ * Converts the <code>int</code> to a <code>String</code> assuming it is
+ * unsigned in base 2.
+ * @param i the <code>int</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toBinaryString(int i)
+ {
+ return toUnsignedString(i, 1);
}
- // Added in JDK 1.2
- /** @throws ClassCastException */
- public int compareTo(Object o)
+ /**
+ * Converts the <code>int</code> to a <code>String</code> and assumes
+ * a radix of 10.
+ * @param i the <code>int</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(int i)
{
- return this.compareTo((Integer) o);
+ // This is tricky: in libgcj, String.valueOf(int) is a fast native
+ // implementation. In Classpath it just calls back to
+ // Integer.toString(int,int).
+ return String.valueOf (i);
}
- public static Integer decode(String str) throws NumberFormatException
+ /**
+ * Converts the <code>Integer</code> value to a <code>String</code> and
+ * assumes a radix of 10.
+ * @return the <code>String</code> representation of this <code>Integer</code>.
+ */
+ public String toString()
{
- boolean isNeg = false;
- int index = 0;
- int radix = 10;
- final int len;
+ return toString (value);
+ }
- if ((len = str.length()) == 0)
- throw new NumberFormatException();
+ /**
+ * Converts the <code>int</code> to a <code>String</code> using
+ * the specified radix (base).
+ * @param i the <code>int</code> to convert to <code>String</code>.
+ * @param radix the radix (base) to use in the conversion.
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(int num, int radix)
+ {
+ // Use optimized method for the typical case.
+ if (radix == 10 ||
+ radix < Character.MIN_RADIX || radix > Character.MAX_RADIX)
+ return toString(num);
- // Negative numbers are always radix 10.
- if (str.charAt(0) == '-')
+ // For negative numbers, print out the absolute value w/ a leading '-'.
+ // Use an array large enough for a binary number.
+ char[] buffer = new char[33];
+ int i = 33;
+ boolean isNeg;
+ if (num < 0)
{
- radix = 10;
- index++;
isNeg = true;
- }
- else if (str.charAt(index) == '#')
- {
- radix = 16;
- index++;
- }
- else if (str.charAt(index) == '0')
- {
- // Check if str is just "0"
- if (len == 1)
- return new Integer(0);
+ num = -(num);
- index++;
- if (str.charAt(index) == 'x')
+ // When the value is MIN_VALUE, it overflows when made positive
+ if (num < 0)
{
- radix = 16;
- index++;
+ buffer[--i] = Character.forDigit(-(num + radix) % radix, radix);
+ num = -(num / radix);
}
- else
- radix = 8;
}
+ else
+ isNeg = false;
- if (index >= len)
- throw new NumberFormatException();
-
- return new Integer(parseInt(str, index, len, isNeg, radix));
- }
-
- public boolean equals(Object obj)
- {
- return (obj instanceof Integer && ((Integer) obj).value == value);
- }
+ do
+ {
+ buffer[--i] = Character.forDigit(num % radix, radix);
+ num /= radix;
+ }
+ while (num > 0);
- public static Integer getInteger(String prop)
- {
- return getInteger(prop, null);
- }
+ if (isNeg)
+ buffer[--i] = '-';
- public static Integer getInteger(String prop, int defval)
- {
- Integer val = getInteger(prop, null);
- return val == null ? new Integer(defval) : val;
+ return String.valueOf(buffer, i, 33-i);
}
- public static Integer getInteger(String prop, Integer defobj)
+ /**
+ * Creates a new <code>Integer</code> object using the <code>String</code>,
+ * assuming a radix of 10.
+ * @param s the <code>String</code> to convert.
+ * @return the new <code>Integer</code>.
+ * @see #Integer(java.lang.String)
+ * @see #parseInt(java.lang.String)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as an <code>int</code>.
+ */
+ public static Integer valueOf(String s) throws NumberFormatException
{
- try
- {
- String val = System.getProperty(prop);
- if (val != null)
- return decode(val);
- }
- catch (NumberFormatException ex)
- {
- }
- return defobj;
+ return new Integer(parseInt(s));
}
- public int hashCode()
+ /**
+ * Creates a new <code>Integer</code> object using the <code>String</code>
+ * and specified radix (base).
+ * @param s the <code>String</code> to convert.
+ * @param radix the radix (base) to convert with.
+ * @return the new <code>Integer</code>.
+ * @see #parseInt(java.lang.String,int)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as an <code>int</code>.
+ */
+ public static Integer valueOf(String s, int radix)
+ throws NumberFormatException
{
- return value;
+ return new Integer(parseInt(s, radix));
}
- public static int parseInt(String str) throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into an <code>int</code>.
+ * This function assumes a radix of 10.
+ *
+ * @param s the <code>String</code> to convert
+ * @return the <code>int</code> value of the <code>String</code>
+ * argument.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as an <code>int</code>.
+ */
+ public static int parseInt(String s) throws NumberFormatException
{
- return parseInt(str, 10);
+ return parseInt(s, 10);
}
- public static int parseInt(String str, int radix) throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into an <code>int</code>
+ * using the specified radix (base).
+ *
+ * @param s the <code>String</code> to convert
+ * @param radix the radix (base) to use in the conversion
+ * @return the <code>String</code> argument converted to </code>int</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>int</code>.
+ */
+ public static int parseInt(String str, int radix)
+ throws NumberFormatException
{
final int len;
}
private static int parseInt(String str, int index, int len, boolean isNeg,
- int radix) throws NumberFormatException
+ int radix)
+ throws NumberFormatException
{
int val = 0;
int digval;
return isNeg ? -(val) : val;
}
- public static String toBinaryString(int num)
+ /**
+ * Convert the specified <code>String</code> into an <code>Integer</code>.
+ * The <code>String</code> may represent decimal, hexadecimal, or
+ * octal numbers.
+ *
+ * The <code>String</code> argument is interpreted based on the leading
+ * characters. Depending on what the String begins with, the base will be
+ * interpreted differently:
+ *
+ * <table border=1>
+ * <tr><th>Leading<br>Characters</th><th>Base</th></tr>
+ * <tr><td>#</td><td>16</td></tr>
+ * <tr><td>0x</td><td>16</td></tr>
+ * <tr><td>0X</td><td>16</td></tr>
+ * <tr><td>0</td><td>8</td></tr>
+ * <tr><td>Anything<br>Else</td><td>10</td></tr>
+ * </table>
+ *
+ * @param str the <code>String</code> to interpret.
+ * @return the value of the String as an <code>Integer</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as an <code>int</code>.
+ */
+ public static Integer decode(String str) throws NumberFormatException
{
- return toUnsignedString(num, 1);
+ boolean isNeg = false;
+ int index = 0;
+ int radix = 10;
+ final int len;
+
+ if (str == null || (len = str.length()) == 0)
+ throw new NumberFormatException("string null or empty");
+
+ // Negative numbers are always radix 10.
+ if (str.charAt(index) == '-')
+ {
+ radix = 10;
+ index++;
+ isNeg = true;
+ }
+ else if (str.charAt(index) == '#')
+ {
+ radix = 16;
+ index++;
+ }
+ else if (str.charAt(index) == '0')
+ {
+ // Check if str is just "0"
+ if (len == 1)
+ return new Integer(0);
+
+ index++;
+ if (str.charAt(index) == 'x' || str.charAt(index) == 'X')
+ {
+ radix = 16;
+ index++;
+ }
+ else
+ radix = 8;
+ }
+
+ if (index >= len)
+ throw new NumberFormatException("empty value");
+
+ return new Integer(parseInt(str, index, len, isNeg, radix));
}
- public static String toHexString(int num)
+ /** Return the value of this <code>Integer</code> as a <code>byte</code>.
+ ** @return the value of this <code>Integer</code> as a <code>byte</code>.
+ **/
+ public byte byteValue()
{
- return toUnsignedString(num, 4);
+ return (byte) value;
}
- public static String toOctalString(int num)
+ /** Return the value of this <code>Integer</code> as a <code>short</code>.
+ ** @return the value of this <code>Integer</code> as a <code>short</code>.
+ **/
+ public short shortValue()
{
- return toUnsignedString(num, 3);
+ return (short) value;
}
- private static String toUnsignedString(int num, int exp)
+ /** Return the value of this <code>Integer</code> as an <code>int</code>.
+ ** @return the value of this <code>Integer</code> as an <code>int</code>.
+ **/
+ public int intValue()
{
- // Use an array large enough for a binary number.
- int radix = 1 << exp;
- int mask = radix - 1;
- char[] buffer = new char[32];
- int i = 32;
- do
- {
- buffer[--i] = Character.forDigit(num & mask, radix);
- num = num >>> exp;
- }
- while (num != 0);
-
- return String.valueOf(buffer, i, 32-i);
+ return value;
}
- public String toString()
+ /** Return the value of this <code>Integer</code> as a <code>long</code>.
+ ** @return the value of this <code>Integer</code> as a <code>long</code>.
+ **/
+ public long longValue()
{
- return toString(this.value);
+ return value;
}
- public static String toString(int num)
+ /** Return the value of this <code>Integer</code> as a <code>float</code>.
+ ** @return the value of this <code>Integer</code> as a <code>float</code>.
+ **/
+ public float floatValue()
{
- return String.valueOf (num);
+ return value;
}
- public static String toString(int num, int radix)
+ /** Return the value of this <code>Integer</code> as a <code>double</code>.
+ ** @return the value of this <code>Integer</code> as a <code>double</code>.
+ **/
+ public double doubleValue()
{
- // Use optimized method for the typical case.
- if (radix == 10 ||
- radix < Character.MIN_RADIX || radix > Character.MAX_RADIX)
- return toString(num);
-
- // For negative numbers, print out the absolute value w/ a leading '-'.
- // Use an array large enough for a binary number.
- char[] buffer = new char[33];
- int i = 33;
- boolean isNeg;
- if (num < 0)
- {
- isNeg = true;
- num = -(num);
-
- // When the value is MIN_VALUE, it overflows when made positive
- if (num < 0)
- {
- buffer[--i] = Character.forDigit(-(num + radix) % radix, radix);
- num = -(num / radix);
- }
- }
- else
- isNeg = false;
-
- do
- {
- buffer[--i] = Character.forDigit(num % radix, radix);
- num /= radix;
- }
- while (num > 0);
-
- if (isNeg)
- buffer[--i] = '-';
-
- return String.valueOf(buffer, i, 33-i);
+ return value;
}
- public static Integer valueOf(String str) throws NumberFormatException
+ /**
+ * Compare two Integers numerically by comparing their
+ * <code>int</code> values.
+ * @return a positive value if this <code>Integer</code> is greater
+ * in value than the argument <code>Integer</code>; a negative value
+ * if this <code>Integer</code> is smaller in value than the argument
+ * <code>Integer</code>; and <code>0</code>, zero, if this
+ * <code>Integer</code> is equal in value to the argument
+ * <code>Integer</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Integer i)
{
- return new Integer(parseInt(str, 10));
+ if (this.value == i.value)
+ return 0;
+
+ // Returns just -1 or 1 on inequality; doing math might overflow.
+ if (this.value > i.value)
+ return 1;
+
+ return -1;
}
- public static Integer valueOf(String str, int radix)
- throws NumberFormatException
+ /**
+ * Behaves like <code>compareTo(java.lang.Integer)</code> unless the Object
+ * is not a <code>Integer</code>. Then it throws a
+ * <code>ClassCastException</code>.
+ * @exception ClassCastException if the argument is not a
+ * <code>Integer</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Object o)
{
- return new Integer(parseInt(str, radix));
+ return compareTo((Integer)o);
}
}
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
+/* java.lang.Long
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
package java.lang;
/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date September 18, 1998.
- */
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
+ * Instances of class <code>Double</code> represent primitive
+ * <code>double</code> values.
+ *
+ * Additionally, this class provides various helper functions and variables
+ * related to longs.
+ *
+ * @author Paul Fisher
+ * @author John Keiser
+ * @author Warren Levy
+ * @since JDK 1.0
*/
-
public final class Long extends Number implements Comparable
{
- public static final long MAX_VALUE = 0x7FFFFFFFFFFFFFFFL;
- public static final long MIN_VALUE = 0x8000000000000000L;
-
- // This initialization is seemingly circular, but it is accepted
- // by javac, and is handled specially by gcc.
- public static final Class TYPE = long.class;
+ // compatible with JDK 1.0.2+
+ static final long serialVersionUID = 4290774380558885855L;
- /* The long value of the instance. */
- private long value;
-
- private static final long serialVersionUID = 4290774380558885855L;
+ /**
+ * The minimum value a <code>long</code> can represent is
+ * -9223372036854775808.
+ */
+ public static final long MIN_VALUE = 0x8000000000000000L;
- public Long(long val)
+ /**
+ * The maximum value a <code>long</code> can represent is
+ * 9223372036854775807.
+ */
+ public static final long MAX_VALUE = 0x7fffffffffffffffL;
+
+ /**
+ * The primitive type <code>long</code> is represented by this
+ * <code>Class</code> object.
+ */
+ public static final Class TYPE = VMClassLoader.getPrimitiveClass ("long");
+
+ /**
+ * The immutable value of this Long.
+ */
+ private final long value;
+
+ /**
+ * Create a <code>Long</code> object representing the value of the
+ * <code>long</code> argument.
+ *
+ * @param value the value to use
+ */
+ public Long(long value)
{
- value = val;
+ this.value = value;
}
- public Long(String str) throws NumberFormatException
+ /**
+ * Create a <code>Long</code> object representing the value of the
+ * argument after conversion to a <code>long</code>.
+ *
+ * @param s the string to convert.
+ */
+ public Long(String s) throws NumberFormatException
{
- value = parseLong(str, 10);
+ value = parseLong(s, 10);
}
- public byte byteValue()
+ /**
+ * If the <code>Object</code> is not <code>null</code>, is an
+ * <code>instanceof</code> <code>Long</code>, and represents
+ * the same primitive <code>long</code> value return
+ * <code>true</code>. Otherwise <code>false</code> is returned.
+ */
+ public boolean equals(Object obj)
{
- return (byte) value;
+ return obj instanceof Long && ((Long)obj).value == value;
}
- public double doubleValue()
+ /**
+ * Return a hashcode representing this Object.
+ *
+ * <code>Long</code>'s hash code is calculated by simply returning its
+ * value.
+ *
+ * @return this Object's hash code.
+ */
+ public int hashCode()
{
- return (double) value;
+ return (int)(value^(value>>>32));
}
- public float floatValue()
+ /**
+ * Get the specified system property as a <code>Long</code>.
+ *
+ * A method similar to <code>Integer</code>'s <code>decode()</code> will be
+ * used to interpret the value of the property.
+ *
+ * @param nm the name of the system property
+ * @return the system property as an <code>Long</code>, or
+ * <code>null</code> if the property is not found or cannot be
+ * decoded as a <code>Long</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see java.lang.Integer#decode(int)
+ */
+ public static Long getLong(String nm)
{
- return (float) value;
+ return getLong(nm, null);
}
- public int intValue()
+ /**
+ * Get the specified system property as an <code>Long</code>, or use a
+ * default <code>long</code> value if the property is not found or is not
+ * decodable.
+ *
+ * A method similar to <code>Integer</code>'s <code>decode()</code> will be
+ * used to interpret the value of the property.
+ *
+ * @param nm the name of the system property
+ * @param val the default value to use if the property is not found or not
+ * a number.
+ * @return the system property as a <code>Long</code>, or the default
+ * value if the property is not found or cannot be decoded as a
+ * <code>Long</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see java.lang.Integer#decode(int)
+ * @see #getLong(java.lang.String,java.lang.Long)
+ */
+ public static Long getLong(String nm, long val)
{
- return (int) value;
+ Long result = getLong(nm, null);
+ return (result == null) ? new Long(val) : result;
}
- public long longValue()
+ /**
+ * Get the specified system property as an <code>Long</code>, or use a
+ * default <code>Long</code> value if the property is not found or is
+ * not decodable.
+ *
+ * The <code>decode()</code> method will be used to interpret the value of
+ * the property.
+ *
+ * @param nm the name of the system property
+ * @param val the default value to use if the property is not found or not
+ * a number.
+ * @return the system property as an <code>Long</code>, or the default
+ * value if the property is not found or cannot be decoded as an
+ * <code>Long</code>.
+ * @see java.lang.System#getProperty(java.lang.String)
+ * @see java.lang.Integer#decode(int)
+ * @see #getLong(java.lang.String,long)
+ */
+ public static Long getLong(String nm, Long def)
{
- return value;
+ String val = System.getProperty(nm);
+ if (val == null)
+ return def;
+ try
+ {
+ return decode(nm);
+ }
+ catch (NumberFormatException e)
+ {
+ return def;
+ }
}
- public short shortValue()
+ private static String toUnsignedString(long num, int exp)
{
- return (short) value;
+ // Use an array large enough for a binary number.
+ int radix = 1 << exp;
+ int mask = radix - 1;
+ char[] buffer = new char[64];
+ int i = 64;
+ do
+ {
+ buffer[--i] = Character.forDigit((int) num & mask, radix);
+ num = num >>> exp;
+ }
+ while (num != 0);
+
+ return String.valueOf(buffer, i, 64-i);
}
- // Added in JDK 1.2
- public int compareTo(Long anotherLong)
+ /**
+ * Converts the <code>long</code> to a <code>String</code> assuming it is
+ * unsigned in base 16.
+ * @param i the <code>long</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toHexString(long i)
{
- if (this.value == anotherLong.value)
- return 0;
-
- // Returns just -1 or 1 on inequality; doing math might overflow the long.
- if (this.value > anotherLong.value)
- return 1;
-
- return -1;
+ return toUnsignedString(i, 4);
}
- // Added in JDK 1.2
- /** @throws ClassCastException */
- public int compareTo(Object o)
+ /**
+ * Converts the <code>long</code> to a <code>String</code> assuming it is
+ * unsigned in base 8.
+ * @param i the <code>long</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toOctalString(long i)
{
- return this.compareTo((Long) o);
+ return toUnsignedString(i, 3);
}
- // Added in JDK 1.2
- public static Long decode(String str) throws NumberFormatException
- {
- boolean isNeg = false;
- int index = 0;
- int radix = 10;
- final int len;
+ /**
+ * Converts the <code>long</code> to a <code>String</code> assuming it is
+ * unsigned in base 2.
+ * @param i the <code>long</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toBinaryString(long i) {
+ return toUnsignedString(i, 1);
+ }
- if ((len = str.length()) == 0)
- throw new NumberFormatException();
+ /**
+ * Converts the <code>long</code> to a <code>String</code> and assumes
+ * a radix of 10.
+ * @param num the <code>long</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(long num)
+ {
+ // Use the Integer toString for efficiency if possible.
+ if (num <= Integer.MAX_VALUE && num >= Integer.MIN_VALUE)
+ return Integer.toString((int) num);
- // Negative numbers are always radix 10.
- if (str.charAt(0) == '-')
+ // Use an array large enough for "-9223372036854775808"; i.e. 20 chars.
+ char[] buffer = new char[20];
+ int i = 20;
+ boolean isNeg;
+ if (num < 0)
{
- radix = 10;
- index++;
isNeg = true;
- }
- else if (str.charAt(index) == '#')
- {
- radix = 16;
- index++;
- }
- else if (str.charAt(index) == '0')
- {
- // Check if str is just "0"
- if (len == 1)
- return new Long(0L);
-
- index++;
- if (str.charAt(index) == 'x')
+ num = -(num);
+ if (num < 0)
{
- radix = 16;
- index++;
+ // Must be MIN_VALUE, so handle this special case.
+ buffer[--i] = '8';
+ num = 922337203685477580L;
}
- else
- radix = 8;
}
+ else
+ isNeg = false;
- if (index >= len)
- throw new NumberFormatException();
+ do
+ {
+ buffer[--i] = (char) ((int) '0' + (num % 10));
+ num /= 10;
+ }
+ while (num > 0);
- return new Long(parseLong(str, index, len, isNeg, radix));
- }
+ if (isNeg)
+ buffer[--i] = '-';
- public boolean equals(Object obj)
- {
- return (obj instanceof Long && ((Long) obj).value == value);
+ return String.valueOf(buffer, i, 20-i);
}
- public static Long getLong(String prop)
+ /**
+ * Converts the <code>Long</code> value to a <code>String</code> and
+ * assumes a radix of 10.
+ * @return the <code>String</code> representation of this <code>Long</code>.
+ */
+ public String toString()
{
- return getLong(prop, null);
+ return toString(value);
}
-
- public static Long getLong(String prop, long defval)
+
+ /**
+ * Converts the <code>long</code> to a <code>String</code> using
+ * the specified radix (base).
+ * @param num the <code>long</code> to convert to <code>String</code>.
+ * @param radix the radix (base) to use in the conversion.
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(long num, int radix)
{
- Long val = getLong(prop, null);
- return val == null ? new Long(defval) : val;
- }
+ // Use optimized method for the typical case.
+ if (radix == 10 ||
+ radix < Character.MIN_RADIX || radix > Character.MAX_RADIX)
+ return toString(num);
- public static Long getLong(String prop, Long defobj)
- {
- try
+ // Use the Integer toString for efficiency if possible.
+ if (num <= Integer.MAX_VALUE && num >= Integer.MIN_VALUE)
+ return Integer.toString((int) num, radix);
+
+ // For negative numbers, print out the absolute value w/ a leading '-'.
+ // Use an array large enough for a binary number.
+ char[] buffer = new char[65];
+ int i = 65;
+ boolean isNeg;
+ if (num < 0)
{
- String val = System.getProperty(prop);
- if (val != null)
- return decode(val);
+ isNeg = true;
+ num = -(num);
+
+ // When the value is MIN_VALUE, it overflows when made positive
+ if (num < 0)
+ {
+ buffer[--i] = Character.forDigit((int) (-(num + radix) % radix),
+ radix);
+ num = -(num / radix);
+ }
}
- catch (NumberFormatException ex)
+ else
+ isNeg = false;
+
+ do
{
+ buffer[--i] = Character.forDigit((int) (num % radix), radix);
+ num /= radix;
}
- return defobj;
+ while (num > 0);
+
+ if (isNeg)
+ buffer[--i] = '-';
+
+ return String.valueOf(buffer, i, 65-i);
+ }
+
+ /**
+ * Creates a new <code>Long</code> object using the <code>String</code>,
+ * assuming a radix of 10.
+ * @param s the <code>String</code> to convert.
+ * @return the new <code>Long</code>.
+ * @see #Long(java.lang.String)
+ * @see #parseLong(java.lang.String)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>long</code>.
+ */
+ public static Long valueOf(String s) throws NumberFormatException
+ {
+ return new Long(parseLong(s));
}
- public int hashCode()
+ /**
+ * Creates a new <code>Long</code> object using the <code>String</code>
+ * and specified radix (base).
+ * @param s the <code>String</code> to convert.
+ * @param radix the radix (base) to convert with.
+ * @return the new <code>Long</code>.
+ * @see #parseLong(java.lang.String,int)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>long</code>.
+ */
+ public static Long valueOf(String s, int radix) throws NumberFormatException
{
- return (int)(this.longValue()^(this.longValue()>>>32));
+ return new Long(parseLong(s, radix));
}
- public static long parseLong(String str) throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into a <code>long</code>.
+ * This function assumes a radix of 10.
+ *
+ * @param s the <code>String</code> to convert
+ * @return the <code>long</code> value of the <code>String</code>
+ * argument.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>long</code>.
+ */
+ public static long parseLong(String s) throws NumberFormatException
{
- return parseLong(str, 10);
+ return parseLong(s, 10);
}
+ /**
+ * Converts the specified <code>String</code> into a <code>long</code>
+ * using the specified radix (base).
+ *
+ * @param s the <code>String</code> to convert
+ * @param radix the radix (base) to use in the conversion
+ * @return the <code>String</code> argument converted to </code>long</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>long</code>.
+ */
public static long parseLong(String str, int radix)
- throws NumberFormatException
+ throws NumberFormatException
{
final int len;
return parseLong(str, index, len, isNeg, radix);
}
+ public static Long decode(String str) throws NumberFormatException
+ {
+ boolean isNeg = false;
+ int index = 0;
+ int radix = 10;
+ final int len;
+
+ if ((len = str.length()) == 0)
+ throw new NumberFormatException();
+
+ // Negative numbers are always radix 10.
+ if (str.charAt(0) == '-')
+ {
+ radix = 10;
+ index++;
+ isNeg = true;
+ }
+ else if (str.charAt(index) == '#')
+ {
+ radix = 16;
+ index++;
+ }
+ else if (str.charAt(index) == '0')
+ {
+ // Check if str is just "0"
+ if (len == 1)
+ return new Long(0L);
+
+ index++;
+ if (str.charAt(index) == 'x')
+ {
+ radix = 16;
+ index++;
+ }
+ else
+ radix = 8;
+ }
+
+ if (index >= len)
+ throw new NumberFormatException();
+
+ return new Long(parseLong(str, index, len, isNeg, radix));
+ }
+
private static long parseLong(String str, int index, int len, boolean isNeg,
int radix) throws NumberFormatException
{
return isNeg ? -(val) : val;
}
- public static String toBinaryString(long num)
+ /** Return the value of this <code>Long</code> as an <code>short</code>.
+ ** @return the value of this <code>Long</code> as an <code>short</code>.
+ **/
+ public byte byteValue()
{
- return toUnsignedString(num, 1);
+ return (byte) value;
}
- public static String toHexString(long num)
+ /** Return the value of this <code>Long</code> as an <code>short</code>.
+ ** @return the value of this <code>Long</code> as an <code>short</code>.
+ **/
+ public short shortValue()
{
- return toUnsignedString(num, 4);
+ return (short) value;
}
- public static String toOctalString(long num)
+ /** Return the value of this <code>Long</code> as an <code>int</code>.
+ ** @return the value of this <code>Long</code> as an <code>int</code>.
+ **/
+ public int intValue()
{
- return toUnsignedString(num, 3);
+ return (int) value;
}
- private static String toUnsignedString(long num, int exp)
+ /** Return the value of this <code>Long</code> as a <code>long</code>.
+ ** @return the value of this <code>Long</code> as a <code>long</code>.
+ **/
+ public long longValue()
{
- // Use an array large enough for a binary number.
- int radix = 1 << exp;
- long mask = radix - 1;
- char[] buffer = new char[64];
- int i = 64;
- do
- {
- buffer[--i] = Character.forDigit((int) (num & mask), radix);
- num = num >>> exp;
- }
- while (num != 0);
-
- return String.valueOf(buffer, i, 64-i);
+ return value;
}
- public String toString()
+ /** Return the value of this <code>Long</code> as a <code>float</code>.
+ ** @return the value of this <code>Long</code> as a <code>float</code>.
+ **/
+ public float floatValue()
{
- return toString(this.value);
+ return value;
}
- public static String toString(long num)
+ /** Return the value of this <code>Long</code> as a <code>double</code>.
+ ** @return the value of this <code>Long</code> as a <code>double</code>.
+ **/
+ public double doubleValue()
{
- // Use the Integer toString for efficiency if possible.
- if (num <= Integer.MAX_VALUE && num >= Integer.MIN_VALUE)
- return Integer.toString((int) num);
-
- // Use an array large enough for "-9223372036854775808"; i.e. 20 chars.
- char[] buffer = new char[20];
- int i = 20;
- boolean isNeg;
- if (num < 0)
- {
- isNeg = true;
- num = -(num);
- if (num < 0)
- {
- // Must be MIN_VALUE, so handle this special case.
- buffer[--i] = '8';
- num = 922337203685477580L;
- }
- }
- else
- isNeg = false;
-
- do
- {
- buffer[--i] = (char) ((int) '0' + (num % 10));
- num /= 10;
- }
- while (num > 0);
-
- if (isNeg)
- buffer[--i] = '-';
-
- return String.valueOf(buffer, i, 20-i);
+ return value;
}
- public static String toString(long num, int radix)
+ /**
+ * Compare two Longs numerically by comparing their
+ * <code>long</code> values.
+ * @return a positive value if this <code>Long</code> is greater
+ * in value than the argument <code>Long</code>; a negative value
+ * if this <code>Long</code> is smaller in value than the argument
+ * <code>Long</code>; and <code>0</code>, zero, if this
+ * <code>Long</code> is equal in value to the argument
+ * <code>Long</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Long l)
{
- // Use optimized method for the typical case.
- if (radix == 10 ||
- radix < Character.MIN_RADIX || radix > Character.MAX_RADIX)
- return toString(num);
-
- // Use the Integer toString for efficiency if possible.
- if (num <= Integer.MAX_VALUE && num >= Integer.MIN_VALUE)
- return Integer.toString((int) num, radix);
-
- // For negative numbers, print out the absolute value w/ a leading '-'.
- // Use an array large enough for a binary number.
- char[] buffer = new char[65];
- int i = 65;
- boolean isNeg;
- if (num < 0)
- {
- isNeg = true;
- num = -(num);
-
- // When the value is MIN_VALUE, it overflows when made positive
- if (num < 0)
- {
- buffer[--i] = Character.forDigit((int) (-(num + radix) % radix),
- radix);
- num = -(num / radix);
- }
- }
- else
- isNeg = false;
-
- do
- {
- buffer[--i] = Character.forDigit((int) (num % radix), radix);
- num /= radix;
- }
- while (num > 0);
-
- if (isNeg)
- buffer[--i] = '-';
+ if (this.value == l.value)
+ return 0;
- return String.valueOf(buffer, i, 65-i);
- }
+ // Returns just -1 or 1 on inequality; doing math might overflow the long.
+ if (this.value > l.value)
+ return 1;
- public static Long valueOf(String str) throws NumberFormatException
- {
- return new Long(parseLong(str, 10));
+ return -1;
}
-
- public static Long valueOf(String str, int radix)
- throws NumberFormatException
+
+ /**
+ * Behaves like <code>compareTo(java.lang.Long)</code> unless the Object
+ * is not a <code>Long</code>. Then it throws a
+ * <code>ClassCastException</code>.
+ * @exception ClassCastException if the argument is not a
+ * <code>Long</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Object o)
{
- return new Long(parseLong(str, radix));
+ return compareTo((Long)o);
}
}
-/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
+/* java.lang.Number
+ Copyright (C) 1998, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
package java.lang;
import java.io.Serializable;
-
+
/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date September 2, 1998.
- */
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
- */
-
+ ** Number is a generic superclass of all the numeric classes, namely
+ ** <code>Byte</code>, <code>Short</code>, <code>Integer</code>,
+ ** <code>Long</code>, <code>Float</code>, and <code>Double</code>.
+ **
+ ** It provides ways to convert from any one value to any other.
+ **
+ ** @author Paul Fisher
+ ** @author John Keiser
+ ** @author Warren Levy
+ ** @since JDK1.0
+ **/
public abstract class Number implements Serializable
{
- public byte byteValue() // Became non-abstract in JDK 1.2
+ /** Return the value of this <code>Number</code> as a <code>byte</code>.
+ ** @return the value of this <code>Number</code> as a <code>byte</code>.
+ **/
+ public byte byteValue()
{
return (byte) intValue();
}
- public abstract double doubleValue();
- public abstract float floatValue();
- public abstract int intValue();
- public abstract long longValue();
-
- public short shortValue() // Became non-abstract in JDK 1.2
+ /** Return the value of this <code>Number</code> as a <code>short</code>.
+ ** @return the value of this <code>Number</code> as a <code>short</code>.
+ **/
+ public short shortValue()
{
return (short) intValue();
}
+ /** Return the value of this <code>Number</code> as an <code>int</code>.
+ ** @return the value of this <code>Number</code> as an <code>int</code>.
+ **/
+ public abstract int intValue();
+
+ /** Return the value of this <code>Number</code> as a <code>long</code>.
+ ** @return the value of this <code>Number</code> as a <code>long</code>.
+ **/
+ public abstract long longValue();
+
+ /** Return the value of this <code>Number</code> as a <code>float</code>.
+ ** @return the value of this <code>Number</code> as a <code>float</code>.
+ **/
+ public abstract float floatValue();
+
+ /** Return the value of this <code>Number</code> as a <code>float</code>.
+ ** @return the value of this <code>Number</code> as a <code>float</code>.
+ **/
+ public abstract double doubleValue();
+
private static final long serialVersionUID = -8742448824652078965L;
}
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
+/* java.lang.Short
+ Copyright (C) 1998, 2001 Free Software Foundation, Inc.
- This file is part of libgcj.
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
package java.lang;
/**
- * @author Per Bothner <bothner@cygnus.com>
- * @date April 17, 1998.
+ * Instances of class <code>Short</code> represent primitive
+ * <code>short</code> values.
+ *
+ * Additionally, this class provides various helper functions and variables
+ * related to shorts.
+ *
+ * @author Paul Fisher
+ * @author John Keiser
+ * @since JDK 1.0
*/
-/* Written using "Java Class Libraries", 2nd edition, plus online
- * API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: Believed complete and correct.
- * Includes JDK 1.2 methods.
- */
-
public final class Short extends Number implements Comparable
{
- short value;
+ static final long serialVersionUID = 7515723908773894738L;
+
+ /**
+ * The minimum value a <code>short</code> can represent is -32768.
+ */
+ public static final short MIN_VALUE = -32768;
- public final static short MIN_VALUE = -32768;
- public final static short MAX_VALUE = 32767;
+ /**
+ * The minimum value a <code>short</code> can represent is 32767.
+ */
+ public static final short MAX_VALUE = 32767;
- // This initialization is seemingly circular, but it is accepted
- // by javac, and is handled specially by gcc.
- public static final Class TYPE = short.class;
+ /**
+ * The primitive type <code>short</code> is represented by this
+ * <code>Class</code> object.
+ */
+ public static final Class TYPE = VMClassLoader.getPrimitiveClass("short");
- private static final long serialVersionUID = 7515723908773894738L;
+ /**
+ * The immutable value of this Short.
+ */
+ private final short value;
+ /**
+ * Create a <code>Short</code> object representing the value of the
+ * <code>short</code> argument.
+ *
+ * @param value the value to use
+ */
public Short(short value)
{
this.value = value;
}
- public Short(String str)
- throws NumberFormatException
+ /**
+ * Create a <code>Short</code> object representing the value of the
+ * argument after conversion to a <code>short</code>.
+ *
+ * @param s the string to convert.
+ */
+ public Short(String s) throws NumberFormatException
{
- this.value = parseShort(str, 10);
+ value = parseShort(s, 10);
}
- public byte byteValue()
+ /**
+ * Return a hashcode representing this Object.
+ *
+ * <code>Short</code>'s hash code is calculated by simply returning its
+ * value.
+ *
+ * @return this Object's hash code.
+ */
+ public int hashCode()
{
- return (byte) value;
+ return value;
}
- public short shortValue()
+ /**
+ * If the <code>Object</code> is not <code>null</code>, is an
+ * <code>instanceof</code> <code>Short</code>, and represents
+ * the same primitive <code>short</code> value return
+ * <code>true</code>. Otherwise <code>false</code> is returned.
+ */
+ public boolean equals(Object obj)
{
- return value;
+ return obj instanceof Short && ((Short)obj).value == value;
}
- public int intValue()
+ /**
+ * Converts the <code>short</code> to a <code>String</code> and assumes
+ * a radix of 10.
+ * @param i the <code>short</code> to convert to <code>String</code>
+ * @return the <code>String</code> representation of the argument.
+ */
+ public static String toString(short i)
{
- return value;
+ return Integer.toString((int) i);
}
- public long longValue ()
+ /**
+ * Converts the <code>Short</code> value to a <code>String</code> and
+ * assumes a radix of 10.
+ * @return the <code>String</code> representation of this <code>Short</code>.
+ */
+ public String toString()
{
- return value;
+ return Integer.toString ((int) value);
}
- public float floatValue ()
+ /**
+ * Creates a new <code>Short</code> object using the <code>String</code>,
+ * assuming a radix of 10.
+ * @param s the <code>String</code> to convert.
+ * @return the new <code>Short</code>.
+ * @see #Short(java.lang.String)
+ * @see #parseShort(java.lang.String)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>short</code>.
+ */
+ public static Short valueOf(String s) throws NumberFormatException
{
- return (float) value;
+ return new Short(parseShort(s));
}
- public double doubleValue ()
+ /**
+ * Creates a new <code>Short</code> object using the <code>String</code>
+ * and specified radix (base).
+ * @param s the <code>String</code> to convert.
+ * @param radix the radix (base) to convert with.
+ * @return the new <code>Short</code>.
+ * @see #parseShort(java.lang.String,int)
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>short</code>.
+ */
+ public static Short valueOf(String s, int radix)
+ throws NumberFormatException
{
- return (double) value;
+ return new Short(parseShort(s, radix));
}
- public static Short decode(String str)
- throws NumberFormatException
+ /**
+ * Converts the specified <code>String</code> into a <code>short</code>.
+ * This function assumes a radix of 10.
+ *
+ * @param s the <code>String</code> to convert
+ * @return the <code>short</code> value of the <code>String</code>
+ * argument.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>short</code>.
+ */
+ public static short parseShort(String s) throws NumberFormatException
{
- int i = (Integer.decode(str)).intValue();
- if (i < MIN_VALUE || i > MAX_VALUE)
- throw new NumberFormatException();
- return new Short((short) i);
+ return parseShort(s, 10);
}
- public static short parseShort(String str, int radix)
+ /**
+ * Converts the specified <code>String</code> into a <code>short</code>
+ * using the specified radix (base).
+ *
+ * @param s the <code>String</code> to convert
+ * @param radix the radix (base) to use in the conversion
+ * @return the <code>String</code> argument converted to </code>short</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>short</code>.
+ */
+ public static short parseShort(String s, int radix)
throws NumberFormatException
{
- int i = Integer.parseInt(str, radix);
+ int i = Integer.parseInt(s, radix);
if (i < MIN_VALUE || i > MAX_VALUE)
throw new NumberFormatException();
return (short) i;
}
- public static short parseShort(String str)
- throws NumberFormatException
+ /**
+ * Convert the specified <code>String</code> into a <code>Short</code>.
+ * The <code>String</code> may represent decimal, hexadecimal, or
+ * octal numbers.
+ *
+ * The <code>String</code> argument is interpreted based on the leading
+ * characters. Depending on what the String begins with, the base will be
+ * interpreted differently:
+ *
+ * <table>
+ * <tr><th>Leading<br>Characters</th><th>Base</th></tr>
+ * <tr><td>#</td><td>16</td></tr>
+ * <tr><td>0x</td><td>16</td></tr>
+ * <tr><td>0X</td><td>16</td></tr>
+ * <tr><td>0</td><td>8</td></tr>
+ * <tr><td>Anything<br>Else</td><td>10</td></tr>
+ * </table>
+ *
+ * @param s the <code>String</code> to interpret.
+ * @return the value of the String as a <code>Short</code>.
+ * @exception NumberFormatException thrown if the <code>String</code>
+ * cannot be parsed as a <code>short</code>.
+ */
+ public static Short decode(String s) throws NumberFormatException
{
- return parseShort(str, 10);
+ int i = (Integer.decode(s)).intValue();
+ if (i < MIN_VALUE || i > MAX_VALUE)
+ throw new NumberFormatException();
+ return new Short((short) i);
}
- public static Short valueOf(String str, int radix)
- throws NumberFormatException
+ /** Return the value of this <code>Short</code> as an <code>short</code>.
+ ** @return the value of this <code>Short</code> as an <code>short</code>.
+ **/
+ public byte byteValue()
{
- return new Short(parseShort(str, radix));
+ return (byte) value;
}
- public static Short valueOf(String str)
- throws NumberFormatException
+ /** Return the value of this <code>Short</code> as an <code>short</code>.
+ ** @return the value of this <code>Short</code> as an <code>short</code>.
+ **/
+ public short shortValue()
{
- return valueOf(str, 10);
+ return value;
}
- // Added in JDK 1.2
- public int compareTo(Short anotherShort)
+ /** Return the value of this <code>Short</code> as an <code>int</code>.
+ ** @return the value of this <code>Short</code> as an <code>int</code>.
+ **/
+ public int intValue()
{
- return this.value - anotherShort.value;
+ return value;
}
- // Added in JDK 1.2
- /** @throws ClassCastException */
- public int compareTo(Object o)
+ /** Return the value of this <code>Short</code> as a <code>long</code>.
+ ** @return the value of this <code>Short</code> as a <code>long</code>.
+ **/
+ public long longValue()
{
- return this.value - ((Short) o).value;
+ return value;
}
- public boolean equals(Object obj)
+ /** Return the value of this <code>Short</code> as a <code>float</code>.
+ ** @return the value of this <code>Short</code> as a <code>float</code>.
+ **/
+ public float floatValue()
{
- return (obj instanceof Short) && ((Short) obj).value == value;
+ return value;
}
- // Verified that hashCode is returns plain value (see Short_1 test).
- public int hashCode()
+ /** Return the value of this <code>Short</code> as a <code>double</code>.
+ ** @return the value of this <code>Short</code> as a <code>double</code>.
+ **/
+ public double doubleValue()
{
return value;
}
- public String toString()
+ /**
+ * Compare two Shorts numerically by comparing their
+ * <code>short</code> values.
+ * @return a positive value if this <code>Short</code> is greater
+ * in value than the argument <code>Short</code>; a negative value
+ * if this <code>Short</code> is smaller in value than the argument
+ * <code>Short</code>; and <code>0</code>, zero, if this
+ * <code>Short</code> is equal in value to the argument
+ * <code>Short</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Short s)
{
- return Integer.toString((int) value);
+ return value - s.value;
}
-
- public static String toString(short value)
+
+ /**
+ * Behaves like <code>compareTo(java.lang.Short)</code> unless the Object
+ * is not a <code>Short</code>. Then it throws a
+ * <code>ClassCastException</code>.
+ * @exception ClassCastException if the argument is not a
+ * <code>Short</code>.
+ *
+ * @since 1.2
+ */
+ public int compareTo(Object o)
{
- return Integer.toString((int) value);
+ return compareTo((Short)o);
}
}
--- /dev/null
+/*
+ * java.lang.ClassLoader: part of the Java Class Libraries project.
+ * Copyright (C) 1998, 2001 Free Software Foundation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+package java.lang;
+
+/**
+ * java.lang.VMClassLoader is a package-private helper for VMs to implement
+ * on behalf of java.lang.ClassLoader.
+ *
+ * @author John Keiser
+ * @version 1.1.0, Sep 22 1998
+ * @since CP1.1
+ */
+
+class VMClassLoader {
+
+ /**
+ * Helper to define a class using a string of bytes.
+ *
+ * @param name the name to give the class. null if unknown.
+ * @param data the data representing the classfile, in classfile format.
+ * @param offset the offset into the data where the classfile starts.
+ * @param len the length of the classfile data in the array.
+ * @return the class that was defined.
+ * @exception ClassFormatError if the byte array is not in proper classfile format.
+ */
+ // Not yet needed for libgcj.
+// final static native Class defineClass(ClassLoader cl, String name,
+// byte[] data, int offset, int len) throws ClassFormatError;
+
+ /**
+ * Helper to resolve all references to other classes from this class.
+ * @param c the class to resolve.
+ */
+ // Not yet needed for libgcj.
+ // final static native void resolveClass(Class c);
+
+ /**
+ * Helper for java.lang.Integer, Byte, etc. to get the TYPE class
+ * at initialization time. If there are multiple classloaders, this
+ * method may be called once per ClassLoader per type.
+ *
+ * @param type name of the primitive type; i.e. "int", "byte", etc.
+ * @return a "bogus" class representing the primitive type.
+ */
+ static final Class getPrimitiveClass(String type)
+ {
+ if ("int".equals (type))
+ return int.class;
+ else if ("long".equals (type))
+ return int.class;
+ else if ("boolean".equals (type))
+ return int.class;
+ else if ("short".equals (type))
+ return int.class;
+ else if ("char".equals (type))
+ return int.class;
+ else if ("byte".equals (type))
+ return int.class;
+ else if ("float".equals (type))
+ return int.class;
+ else if ("double".equals (type))
+ return int.class;
+ else if ("void".equals (type))
+ return int.class;
+ return null;
+ }
+}
projects / platform / upstream / linaro-gcc.git / commitdiff