Java tutorial
//package com.java2s; // it under the terms of the GNU Lesser General Public License as published by import java.util.Collection; public class Main { public static boolean isNotNullOrEmpty(Collection c) { return !isNullOrEmpty(c); } public static boolean isNullOrEmpty(Collection c) { boolean isNullOrEmpty = false; if (null == c || c.size() == 0) { isNullOrEmpty = true; } return isNullOrEmpty; } }