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JSAMPLES.Z
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SetOperations1.java
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1998-05-08
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// Copyright(c) 1996,1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
import com.objectspace.jgl.algorithms.*;
import com.objectspace.jgl.predicates.*;
import com.objectspace.jgl.util.*;
/**
* Union, intersection, difference, symmetric difference, inclusion.
*
* @see com.objectspace.jgl.algorithms.SetOperations
* @see com.objectspace.jgl.HashSet
* @see com.objectspace.jgl,OrderedSet
* @version 3.0.0
* @author ObjectSpace, Inc.
*/
public class SetOperations1
{
public static void main( String[] args )
{
OrderedSet set1 = new OrderedSet( new LessString() );
set1.add( "bat" );
set1.add( "dog" );
set1.add( "ape" );
OrderedSet set2 = new OrderedSet( new LessString() );
set2.add( "dog" );
set2.add( "ape" );
set2.add( "fox" );
System.out.println( "set1 = " + set1 + ", set2 = " + set2 );
OrderedSet union = new OrderedSet( new LessString() );
SetOperations.setUnion( set1, set2, new InsertIterator( union ), new LessString() );
System.out.println( "union = " + union );
System.out.println( "union = " + set1.union( set2 ) );
OrderedSet intersection = new OrderedSet( new LessString() );
SetOperations.setIntersection( set1, set2, new InsertIterator( intersection ), new LessString() );
System.out.println( "intersection = " + intersection );
System.out.println( "intersection = " + set1.intersection( set2 ) );
Array difference = new Array();
SetOperations.setDifference( set1, set2, new InsertIterator( difference ), new LessString() );
System.out.println( "difference = " + difference );
Array symDifference = new Array();
SetOperations.setSymmetricDifference( set1, set2, new InsertIterator( symDifference ), new LessString() );
System.out.println( "symmetric difference = " + symDifference );
boolean includes1 = SetOperations.includes( difference, symDifference, new LessString() );
System.out.println( "includes1 = " + includes1 );
boolean includes2 = SetOperations.includes( symDifference, difference, new LessString() );
System.out.println( "includes2 = " + includes2 );
}
}