Java tutorial
//package com.java2s; // Licensed under the Apache License, Version 2.0 (the "License"); import java.util.Collection; public class Main { /** * Returns <code>true</code> if the passed collection is either <code>null</code> * or has size 0. */ public static boolean isEmpty(Collection<?> c) { return (c == null) ? true : (c.size() == 0); } }