Java tutorial
//package com.java2s; /* * Copyright (c) 2013-2014 Josef Hardi <josef.hardi@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { /** * Determines if a character sequence is <code>null</code> or empty. * * @param s * The character sequence. * @return Returns <code>true</code> if the character sequence is * <code>null</code> or empty, or <code>false</code> otherwise. */ private static boolean isEmpty(CharSequence cs) { return cs == null || cs.length() == 0; } }