Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.
 * 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
 *******************************************************************************/

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

public class Main {
    /**
     * Return true if same objects exist in listA and listB
     */
    public static <T> boolean isEqual(Collection<T> listA, Collection<T> listB) {
        if (listA.size() != listB.size()) {
            return false;
        }
        if (listA.size() != setIntersection(listA, listB).size()) {
            return false;
        }
        return true;
    }

    /**
     * @return The intersection of two sets A and B is the set of elements common to A and B
     */
    public static <T> List<T> setIntersection(Collection<T> listA, Collection<T> listB) {
        ArrayList<T> intersection = new ArrayList<T>(listA.size());

        for (T obj : listA) {
            if (listB.contains(obj)) {
                intersection.add(obj);
            }
        }
        return intersection;
    }
}