SetOperations examples

JGL - The Generic Collection Library for Java

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SetOperations examples

SetOperations1 - Union, intersection, difference, symmetric difference, inclusion.

SetOperations1 Example Code

// 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 );

    }

  }

SetOperations1 Example Output

set1 = OrderedSet( ape, bat, dog ), set2 = OrderedSet( ape, dog, fox ) union = OrderedSet( ape, bat, dog, fox ) union = OrderedSet( ape, bat, dog, fox ) intersection = OrderedSet( ape, dog ) intersection = OrderedSet( ape, dog ) difference = Array( bat ) symmetric difference = Array( bat, fox ) includes1 = false includes2 = true

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