001: /*
002: *
003: *
004: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006: *
007: * This program is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU General Public License version
009: * 2 only, as published by the Free Software Foundation.
010: *
011: * This program is distributed in the hope that it will be useful, but
012: * WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * General Public License version 2 for more details (a copy is
015: * included at /legal/license.txt).
016: *
017: * You should have received a copy of the GNU General Public License
018: * version 2 along with this work; if not, write to the Free Software
019: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA
021: *
022: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023: * Clara, CA 95054 or visit www.sun.com if you need additional
024: * information or have any questions.
025: */
026:
027: package java.lang;
028:
029: /**
030: * The Short class is the standard wrapper for short values.
031: *
032: * @version 12/17/01 (CLDC 1.1)
033: * @since JDK1.1, CLDC 1.0
034: */
035: public final class Short {
036:
037: /**
038: * The minimum value a Short can have.
039: */
040: public static final short MIN_VALUE = -32768;
041:
042: /**
043: * The maximum value a Short can have.
044: */
045: public static final short MAX_VALUE = 32767;
046:
047: /**
048: * Assuming the specified String represents a short, returns
049: * that short's value. Throws an exception if the String cannot
050: * be parsed as a short. The radix is assumed to be 10.
051: *
052: * @param s the String containing the short
053: * @return The short value represented by the specified string
054: * @exception NumberFormatException If the string does not
055: * contain a parsable short.
056: */
057: public static short parseShort(String s)
058: throws NumberFormatException {
059: return parseShort(s, 10);
060: }
061:
062: /**
063: * Assuming the specified String represents a short, returns
064: * that short's value in the radix specified by the second
065: * argument. Throws an exception if the String cannot
066: * be parsed as a short.
067: *
068: * @param s the String containing the short
069: * @param radix the radix to be used
070: * @return The short value represented by the specified string in
071: * the specified radix.
072: * @exception NumberFormatException If the String does not
073: * contain a parsable short.
074: */
075: public static short parseShort(String s, int radix)
076: throws NumberFormatException {
077: int i = Integer.parseInt(s, radix);
078: if (i < MIN_VALUE || i > MAX_VALUE)
079: throw new NumberFormatException();
080: return (short) i;
081: }
082:
083: /**
084: * The value of the Short.
085: */
086: private short value;
087:
088: /**
089: * Constructs a Short object initialized to the specified short value.
090: *
091: * @param value the initial value of the Short
092: */
093: public Short(short value) {
094: this .value = value;
095: }
096:
097: /**
098: * Returns the value of this Short as a short.
099: *
100: * @return the value of this Short as a short.
101: */
102: public short shortValue() {
103: return value;
104: }
105:
106: /**
107: * Returns a String object representing this Short's value.
108: */
109: public String toString() {
110: return String.valueOf((int) value);
111: }
112:
113: /**
114: * Returns a hashcode for this Short.
115: */
116: public int hashCode() {
117: return (int) value;
118: }
119:
120: /**
121: * Compares this object to the specified object.
122: *
123: * @param obj the object to compare with
124: * @return true if the objects are the same; false otherwise.
125: */
126: public boolean equals(Object obj) {
127: if (obj instanceof Short) {
128: return value == ((Short) obj).shortValue();
129: }
130: return false;
131: }
132:
133: }
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