Java tutorial
//package com.java2s; //License from project: Apache License import java.util.Arrays; public class Main { public static boolean contains(Object[] array, Object value) { if (array == null) { return false; } for (Object object : array) { if (object == null) { if (value == null) { return true; } } else if (object.equals(value)) { return true; } } return false; } public static boolean contains(int[] array, int value) { return Arrays.binarySearch(array, value) >= 0 ? true : false; } }