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JSAMPLES.Z
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HashMap6.java
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1998-05-08
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// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
/**
* Counting, finding, erasing.
*
* @see com.objectspace.jgl.HashMap
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class HashMap6
{
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 );
System.out.println( "map.count( ape ) = " + map.count( "ape" ) );
HashMapIterator i = map.find( "ape" );
if ( i.equals( map.end() ) ) // A simpler way: if ( i.atEnd() ) ...
{
System.out.println( "Could not find dog." );
}
else
{
while ( !i.atEnd() && i.key().equals( "ape" ) )
{
System.out.println( "Found " + i.get() );
i.advance();
}
}
System.out.println( "map.remove( ape ) = " + map.remove( "ape" ) );
HashMapIterator j = map.find( "ape" );
if ( j.atEnd() ) // A simpler way: if ( j.equals( map.end() ) ) ...
System.out.println( "Could not find ape." );
else
System.out.println( "Found " + j.get() );
}
}