Java Set Compare compareSets(Set resSet, Set initSet)

Description

compare Sets

License

Open Source License

Declaration

private static Set compareSets(Set resSet, Set initSet) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2007, 2008 Intel Corporation and others.
 * 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://ww  w  . j  a v a 2  s.  co m
 * Intel Corporation - Initial API and implementation
 *******************************************************************************/

import java.util.Collections;

import java.util.Set;

public class Main {
    private static Set compareSets(Set resSet, Set initSet) {
        Set result = null;
        if (initSet == null || initSet.isEmpty()) {
            if (resSet != null && !resSet.isEmpty()) {
                result = resSet;
            }
        } else if (resSet == null || resSet.isEmpty()) {
            result = Collections.EMPTY_SET;
        } else {
            if (!initSet.equals(resSet)) {
                result = resSet;
            }
        }

        return result;
    }
}

Related

1. compareSet(Set set1, Set set2)