Java tutorial
//package com.java2s; //License from project: Open Source License public class Main { /** * Returns true if the string is null or 0-length. * * @param str the string to be examined * @return true if str is null or zero length * @since 1.0.0 */ public static boolean isEmpty(CharSequence str) { if (str == null || str.length() == 0) { return true; } else { return false; } } }