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Java Source | 1998-05-08 | 1.3 KB | 50 lines |
- // Copyright(c) 1996,1997 ObjectSpace, Inc.
- import com.objectspace.jgl.*;
- import java.util.Enumeration;
-
- /**
- * Accessing keys and values.
- *
- * @see com.objectspace.jgl.HashMap
- * @version 3.0.0
- * @author ObjectSpace, Inc.
- */
-
- public class HashMap5
- {
- public static void main( String[] args )
- {
- HashMap map = new HashMap( true ); // allow duplicates
- map.add( "cat", "Meow" );
- map.add( "ape", "Squeak" );
- map.add( "ape", "Whoop" );
- map.add( "bat", "Squeak" );
- System.out.println( "map = " + map );
- System.out.println();
-
- System.out.println( "Enumerate the HashMap" );
- Enumeration e = map.elements();
- while ( e.hasMoreElements() )
- System.out.println( e.nextElement() );
- System.out.println();
-
- e = map.keys();
- System.out.print( "map.keys() = " );
- while ( e.hasMoreElements() )
- System.out.print( e.nextElement() + " " );
- System.out.println();
-
- e = map.keys( "Squeak" );
- System.out.print( "map.keys( Squeak ) = " );
- while ( e.hasMoreElements() )
- System.out.print( e.nextElement() + " " );
- System.out.println();
-
- e = map.values( "ape" );
- System.out.print( "map.keys( ape ) = " );
- while ( e.hasMoreElements() )
- System.out.print( e.nextElement() + " " );
- System.out.println();
- }
- }
-