home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Visual Cafe 3
/
Visual Cafe 3.ISO
/
Vcafe
/
Main.bin
/
Short.java
< prev
next >
Wrap
Text File
|
1998-09-22
|
7KB
|
257 lines
/*
* @(#)Short.java 1.8 98/07/01
*
* Copyright 1995-1998 by Sun Microsystems, Inc.,
* 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
* All rights reserved.
*
* This software is the confidential and proprietary information
* of Sun Microsystems, Inc. ("Confidential Information"). You
* shall not disclose such Confidential Information and shall use
* it only in accordance with the terms of the license agreement
* you entered into with Sun.
*/
package java.lang;
/**
* The Short class is the standard wrapper for short values.
*
* @author Nakul Saraiya
* @version 1.8, 07/01/98
* @see java.lang.Number
* @since JDK1.1
*/
public final
class Short extends Number {
/**
* The minimum value a Short can have.
*
* @since JDK1.1
*/
public static final short MIN_VALUE = -32768;
/**
* The maximum value a Short can have.
*
* @since JDK1.1
*/
public static final short MAX_VALUE = 32767;
/**
* The Class object representing the primitive type short.
*
* @since JDK1.1
*/
public static final Class TYPE = Class.getPrimitiveClass("short");
/**
* Returns a new String object representing the specified
* Short. The radix is assumed to be 10.
*
* @param s the short to be converted
* @since JDK1.1
*/
public static String toString(short s) {
return Integer.toString((int)s, 10);
}
/**
* Assuming the specified String represents a short, returns
* that short's value. Throws an exception if the String cannot
* be parsed as a short. The radix is assumed to be 10.
*
* @param s the String containing the short
* @exception NumberFormatException If the string does not
* contain a parsable short.
* @since JDK1.1
*/
public static short parseShort(String s) throws NumberFormatException {
return parseShort(s, 10);
}
/**
* Assuming the specified String represents a short, returns
* that short's value. Throws an exception if the String cannot
* be parsed as a short.
*
* @param s the String containing the short
* @param radix the radix to be used
* @exception NumberFormatException If the String does not
* contain a parsable short.
* @since JDK1.1
*/
public static short parseShort(String s, int radix)
throws NumberFormatException {
int i = Integer.parseInt(s, radix);
if (i < MIN_VALUE || i > MAX_VALUE)
throw new NumberFormatException();
return (short)i;
}
/**
* Assuming the specified String represents a short, returns a
* new Short object initialized to that value. Throws an
* exception if the String cannot be parsed as a short.
*
* @param s the String containing the integer
* @param radix the radix to be used
* @exception NumberFormatException If the String does not
* contain a parsable short.
* @since JDK1.1
*/
public static Short valueOf(String s, int radix)
throws NumberFormatException {
return new Short(parseShort(s, radix));
}
/**
* Assuming the specified String represents a short, returns a
* new Short object initialized to that value. Throws an
* exception if the String cannot be parsed as a short.
*
* @param s the String containing the integer
* @exception NumberFormatException If the String does not
* contain a parsable short.
* @since JDK1.1
*/
public static Short valueOf(String s) throws NumberFormatException {
return valueOf(s, 10);
}
/**
* Decodes a String into a Short. The String may represent
* decimal, hexadecimal, and octal numbers.
*
* @param nm the string to decode
* @since JDK1.1
*/
public static Short decode(String nm) throws NumberFormatException {
if (nm.startsWith("0x")) {
return Short.valueOf(nm.substring(2), 16);
}
if (nm.startsWith("#")) {
return Short.valueOf(nm.substring(1), 16);
}
if (nm.startsWith("0") && nm.length() > 1) {
return Short.valueOf(nm.substring(1), 8);
}
return Short.valueOf(nm);
}
/**
* The value of the Short.
*/
private short value;
/**
* Constructs a Short object initialized to the specified short value.
*
* @param value the initial value of the Short
* @since JDK1.1
*/
public Short(short value) {
this.value = value;
}
/**
* Constructs a Short object initialized to the value specified by the
* String parameter. The radix is assumed to be 10.
*
* @param s the String to be converted to a Short
* @exception NumberFormatException If the String does not
* contain a parsable short.
* @since JDK1.1
*/
public Short(String s) throws NumberFormatException {
this.value = parseShort(s);
}
/**
* Returns the value of this Short as a byte.
*
* @since JDK1.1
*/
public byte byteValue() {
return (byte)value;
}
/**
* Returns the value of this Short as a short.
*
* @since JDK1.1
*/
public short shortValue() {
return value;
}
/**
* Returns the value of this Short as an int.
*
* @since JDK1.1
*/
public int intValue() {
return (int)value;
}
/**
* Returns the value of this Short as a long.
*
* @since JDK1.1
*/
public long longValue() {
return (long)value;
}
/**
* Returns the value of this Short as a float.
*
* @since JDK1.1
*/
public float floatValue() {
return (float)value;
}
/**
* Returns the value of this Short as a double.
*
* @since JDK1.1
*/
public double doubleValue() {
return (double)value;
}
/**
* Returns a String object representing this Short's value.
*
* @since JDK1.1
*/
public String toString() {
return String.valueOf((int)value);
}
/**
* Returns a hashcode for this Short.
*
* @since JDK1.1
*/
public int hashCode() {
return (int)value;
}
/**
* Compares this object to the specified object.
*
* @param obj the object to compare with
* @return true if the objects are the same; false otherwise.
* @since JDK1.1
*/
public boolean equals(Object obj) {
if ((obj != null) && (obj instanceof Short)) {
return value == ((Short)obj).shortValue();
}
return false;
}
}