Check if two collection Contains different elements - Java java.util

Java examples for java.util:Collection Contain

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Description

Check if two collection Contains different elements

Demo Code

/*// w  w  w.  j a  v a 2  s  .c  o m
 * #%L
 * ActivityInfo Server
 * %%
 * Copyright (C) 2009 - 2013 UNICEF
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */
//package com.book2s;
import java.util.Collection;

public class Main {
    public static void main(String[] argv) {
        Collection c1 = java.util.Arrays.asList("asdf", "book2s.com");
        Collection c2 = java.util.Arrays.asList("asdf", "book2s.com");
        System.out.println(notContainsEqual(c1, c2));
    }

    public static <T> boolean notContainsEqual(Collection<T> c1,
            Collection<T> c2) {
        return !containsEqual(c1, c2);
    }

    public static <T> boolean containsEqual(Collection<T> c1,
            Collection<T> c2) {
        if (c1 == null && c2 == null) {
            return true;
        }

        if ((c1 == null && c2 != null) || (c1 != null && c2 == null)) {
            return false;
        }

        if (c1.size() != c2.size()) {
            return false;
        }

        return c1.containsAll(c2);
    }
}

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