/[classpath]/classpath/java/lang/Byte.java
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revision 1.22 by mkoch, Sat Apr 17 17:08:22 2004 UTC revision 1.22.2.1 by tromey, Sat Oct 9 22:39:55 2004 UTC
# Line 1  Line 1 
1  /* Byte.java -- object wrapper for byte  /* Byte.java -- object wrapper for byte
2     Copyright (C) 1998, 2001, 2002 Free Software Foundation, Inc.     Copyright (C) 1998, 2001, 2002, 2004 Free Software Foundation, Inc.
3    
4  This file is part of GNU Classpath.  This file is part of GNU Classpath.
5    
# Line 52  package java.lang; Line 52  package java.lang;
52   * @since 1.1   * @since 1.1
53   * @status updated to 1.4   * @status updated to 1.4
54   */   */
55  public final class Byte extends Number implements Comparable  public final class Byte extends Number implements Comparable<Byte>
56  {  {
57    /**    /**
58     * Compatible with JDK 1.1+.     * Compatible with JDK 1.1+.
# Line 75  public final class Byte extends Number i Line 75  public final class Byte extends Number i
75     * The primitive type <code>byte</code> is represented by this     * The primitive type <code>byte</code> is represented by this
76     * <code>Class</code> object.     * <code>Class</code> object.
77     */     */
78    public static final Class TYPE = VMClassLoader.getPrimitiveClass('B');    public static final Class<Byte> TYPE = VMClassLoader.getPrimitiveClass('B');
79    
80      /**
81       * The number of bits needed to represent a <code>byte</code>.
82       * @since 1.5
83       */
84      public static final int SIZE = 8;
85    
86      // This caches Byte values, and is used by boxing conversions via
87      // valueOf().  We're required to cache all possible values here.
88      private static Byte[] byteCache = new Byte[MAX_VALUE - MIN_VALUE + 1];
89    
90    
91    /**    /**
92     * The immutable value of this Byte.     * The immutable value of this Byte.
# Line 192  public final class Byte extends Number i Line 203  public final class Byte extends Number i
203    }    }
204    
205    /**    /**
206       * Returns a <code>Byte</code> object wrapping the value.
207       * In contrast to the <code>Byte</code> constructor, this method
208       * will cache some values.  It is used by boxing conversion.
209       *
210       * @param val the value to wrap
211       * @return the <code>Byte</code>
212       */
213      public static Byte valueOf(byte val)
214      {
215        synchronized (byteCache)
216          {
217            if (byteCache[val - MIN_CACHE] == null)
218              byteCache[val - MIN_CACHE] = new Byte(val);
219            return byteCache[val - MIN_CACHE];
220          }
221      }
222    
223      /**
224     * Convert the specified <code>String</code> into a <code>Byte</code>.     * Convert the specified <code>String</code> into a <code>Byte</code>.
225     * The <code>String</code> may represent decimal, hexadecimal, or     * The <code>String</code> may represent decimal, hexadecimal, or
226     * octal numbers.     * octal numbers.

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