DateFormat.java (computeInstance): Separate time and date styles.

* java/text/DateFormat.java (computeInstance): Separate time
	and date styles.
	(getDateTimeInstance): Ditto.
	(getDateTimeInstance(int,int)): New method.
        * Makefile.in: Rebuilt.
	* Makefile.am (ordinary_java_source_files): Add new classes.
	* java/util/PropertyResourceBundle.java: New file.
	* gnu/gcj/util/EnumerationChain.java: New file.

From-SVN: r26842

libjava/gnu/gcj/util/EnumerationChain.java

@@ -0,0 +1,52 @@
+/* Copyright (C) 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 gnu.gcj.util;
+
+import java.util.Enumeration;
+import java.util.NoSuchElementException;
+
+public class EnumerationChain implements Enumeration
+{
+  private Enumeration first_;
+  private Enumeration second_;
+
+  public EnumerationChain (Enumeration first, Enumeration second)
+    {
+      if (first == null
+          || second == null)
+        throw new NullPointerException();
+
+      first_ = first;
+      second_ = second;
+    }
+
+  public synchronized boolean hasMoreElements()
+    {
+      if (first_ == null)
+        return false;
+      else
+        return first_.hasMoreElements();
+    }
+
+  public synchronized Object nextElement() throws NoSuchElementException
+    {
+      while (first_ != null)
+        {
+          if (! first_.hasMoreElements())
+            {
+              first_ = second_;
+              second_ = null;
+            }
+          else 
+            return first_.nextElement();
+        }
+      
+      throw new NoSuchElementException();
+    }
+}