Java tutorial
//package com.java2s; /* * Copyright (c) Fiorano Software Pte. Ltd. and affiliates. All rights reserved. http://www.fiorano.com * The software in this package is published under the terms of the CPAL v1.0 * license, a copy of which has been included with this distribution in the * LICENSE.txt file. */ import java.util.*; public class Main { public static boolean containsStrictly(List list, Object obj) { int index = list.indexOf(obj); return index == -1 ? false : list.get(index) == obj; } }