result set is those elements in superSet which are not in the subSet, using Collection<T> - Java java.util

Java examples for java.util:Set Operation

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Description

result set is those elements in superSet which are not in the subSet, using Collection<T>

Demo Code

/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.//from  w  w w .  ja v  a 2 s. c om
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/
//package com.java2s;
import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

public class Main {
    public static void main(String[] argv) {
        Collection superSet = java.util.Arrays.asList("asdf", "java2s.com");
        Collection subList = java.util.Arrays.asList("asdf", "java2s.com");
        System.out.println(setComplement(superSet, subList));
    }

    /**
     * The resultant set is those elements in superSet which are not in the subSet
     */
    public static <T> List<T> setComplement(Collection<T> superSet,
            Collection<T> subList) {
        ArrayList<T> complement = new ArrayList<T>(superSet.size());
        for (T obj : superSet) {
            if (!subList.contains(obj)) {
                complement.add(obj);
            }
        }
        return complement;
    }
}

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