Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;

public class Main {
    /**
     * Returns true if the two ArrayLists are equal with respect to the objects they contain.
     * The objects must be in the same order and be reference equal (== not .equals()).
     */
    public static <T> boolean referenceEquals(ArrayList<T> a, ArrayList<T> b) {
        if (a == b) {
            return true;
        }

        final int sizeA = a.size();
        final int sizeB = b.size();
        if (a == null || b == null || sizeA != sizeB) {
            return false;
        }

        boolean diff = false;
        for (int i = 0; i < sizeA && !diff; i++) {
            diff |= a.get(i) != b.get(i);
        }
        return !diff;
    }
}