Java tutorial
//package com.java2s; public class Main { public static boolean contains(Object[] arr, Object obj) { for (int i = 0; i < arr.length; i++) { Object object = arr[i]; if (object.equals(obj)) { return true; } } return false; } public static boolean contains(long[] arr, long l) { for (int i = 0; i < arr.length; i++) { long lTemp = arr[i]; if (lTemp == l) { return true; } } return false; } }