Java Collection Compare compareTo(Collection o1, Collection o2)

Description

compare To

License

Open Source License

Declaration

private static <E extends Comparable<E>> int compareTo(Collection<E> o1, Collection<E> o2) 

Method Source Code

//package com.java2s;
/**/*  w ww.  j  av a2s.  c  om*/
 * Copyright (C) 2013  Jayaprakash Pasala
 * <p/>
 * 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
 * any later version.
 * <p/>
 * 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.
 * <p/>
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * <p/>
 *
 * Created with IntelliJ IDEA.
 * User: Jayaprakash Pasala
 * Date: 5/2/13
 * Time: 3:23 PM
 */

import java.util.*;

public class Main {
    private static <E extends Comparable<E>> int compareTo(Collection<E> o1, Collection<E> o2) {
        if (o1.size() < o2.size())
            return -1;
        if (o1.size() > o2.size())
            return 1;
        Iterator<E> it1 = o1.iterator();
        Iterator<E> it2 = o2.iterator();
        for (; it1.hasNext() && it2.hasNext();) {
            E first = it1.next();
            E second = it2.next();
            if (first.equals(second))
                continue;
            return first.compareTo(second);
        }
        return 0;
    }
}

Related

1. compareCollections(Collection cola, Collection colb)
2. compareCollections(Collection value1, Collection value2)
3. compareExactOrder(Collection c1, Collection c2)
4. compareRef(final Collection left, final Collection right)
5. compareSet(Collection s1, Collection s2)
6. compareTo(Collection a, Collection b)