Initial revision

From-SVN: r26263

libjava/java/lang/Byte.java

@@ -0,0 +1,144 @@
+/* Copyright (C) 1998, 1999  Cygnus Solutions
+
+   This file is part of libgcj.
+
+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.  
+ */
+/* 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
+{
+  byte value;
+
+  public final static byte MIN_VALUE = -128;
+  public final static byte MAX_VALUE = 127;
+
+  // This initialization is seemingly circular, but it is accepted
+  // by javac, and is handled specially by gcc.
+  public static final Class TYPE = byte.class;
+
+  public Byte(byte value)
+  {
+    this.value = value;
+  }
+
+  public Byte(String str) 
+    throws NumberFormatException
+  {
+    this.value = parseByte(str, 10);
+  }
+
+  public byte byteValue()
+  {
+    return value;
+  }
+
+  public short shortValue()
+  {
+    return value;
+  }
+
+  public int intValue()
+  {
+    return value;
+  }
+
+  public long longValue ()
+  {
+    return value;
+  }
+
+  public float floatValue ()
+  {
+    return (float) value;
+  }
+
+  public double doubleValue ()
+  {
+    return (double) value;
+  }
+
+  public static Byte decode(String str)
+    throws NumberFormatException
+  {
+    int i = (Integer.decode(str)).intValue();
+    if (i < MIN_VALUE || i > MAX_VALUE)
+      throw new NumberFormatException();
+    return new Byte((byte) i);
+  }
+
+  public static byte parseByte(String str, int radix)
+    throws NumberFormatException
+  {
+    int i = Integer.parseInt(str, radix);
+    if (i < MIN_VALUE || i > MAX_VALUE)
+      throw new NumberFormatException();
+    return (byte) i;
+  }
+
+  public static byte parseByte(String str)
+    throws NumberFormatException
+  {
+    return parseByte(str, 10);
+  }
+
+  public static Byte valueOf(String str, int radix)
+    throws NumberFormatException
+  {
+    return new Byte(parseByte(str, radix));
+  }
+
+  public static Byte valueOf(String str)
+    throws NumberFormatException
+  {
+    return valueOf(str, 10);
+  }
+
+  // Added in JDK 1.2
+  public int compareTo(Byte anotherByte)
+  {
+    return this.value - anotherByte.value;
+  }
+
+  // Added in JDK 1.2
+  public int compareTo(Object o) throws ClassCastException
+  {
+    if (o instanceof Byte)
+      return this.value - ((Byte) o).value;
+    else
+      throw new ClassCastException();
+  }
+
+  public boolean equals(Object obj)
+  {
+    return obj != null && (obj instanceof Byte) && ((Byte)obj).value == value;
+  }
+
+  // Verified that hashCode is returns plain value (see Boolean_1 test).
+  public int hashCode()
+  {
+    return value;
+  }
+
+  public String toString()
+  {
+    return Integer.toString((int) value);
+  }
+
+  public static String toString(byte value)
+  {
+    return Integer.toString((int) value);
+  }
+}