Makefile.am: Add new classes

	* Makefile.am: Add new classes
	(core_java_source_files): CharSequence
	(ordinary_java_source_files): Authenticator, PasswordAuthentication
	* Makefile.in: regenerate
	* gcj/javaprims.h: ditto
	* java/lang/CharSequence: new class from Classpath
	* java/lang/String.java: implements CharSequence
	(subSequence (int,int)): new method
	* java/lang/SubString.java: implements CharSequence
	(subSequence (int,int)): new method
	remerge comments with Classpath
	* java/net/Authenticator.java: new class from Classpath
	* java/net/PasswordAuthentication.java: ditto

From-SVN: r45969

1 files changed, 23 insertions, 1 deletions

diff --git a/libjava/java/lang/String.java b/libjava/java/lang/String.java
index bed3171..8dadfb5 100644
--- a/libjava/java/lang/String.java
+++ b/libjava/java/lang/String.java
@@ -22,7 +22,7 @@ import java.util.Locale;
  * Status:  Complete to 1.3.
  */
 
-public final class String implements Serializable, Comparable
+public final class String implements Serializable, Comparable, CharSequence
 {
   private Object data;
   private int boffset; // Note this is a byte offset - don't use in Java code!
@@ -297,6 +297,28 @@ public final class String implements Serializable, Comparable
       }
   }
 
+  /**
+   * Creates a substring of this String, starting at a specified index
+   * and ending at one character before a specified index.
+   * <p>
+   * To implement <code>CharSequence</code>.
+   * Calls <code>substring(beginIndex, endIndex)</code>.
+   *
+   * @param beginIndex index to start substring (base 0)
+   * @param endIndex index after the last character to be 
+   *   copied into the substring
+   * 
+   * @return new String which is a substring of this String
+   *
+   * @exception StringIndexOutOfBoundsException 
+   *   if (beginIndex < 0 || endIndex > this.length() || beginIndex > endIndex)
+   */
+  public CharSequence subSequence(int beginIndex, int endIndex)
+    throws IndexOutOfBoundsException
+  {
+    return substring(beginIndex, endIndex);
+  }
+
   public String substring (int beginIndex)
   {
     return substring (beginIndex, count);