Here you can find the source of iterableContains(Iterable i, E match)
public static <E> boolean iterableContains(Iterable<? extends E> i, E match)
//package com.java2s; /*/* w ww. j a v a 2s . co m*/ * Copyright 2013 University of Southern California * * 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.*; public class Main { public static <E> boolean iterableContains(Iterable<? extends E> i, E match) { for (E e : i) { if (Objects.equals(e, match)) { return true; } } return false; } }