Java tutorial
//package com.java2s; /*********************************************************************************************************************** * * Copyright (C) 2013, 2014 by sunnsoft (http://www.sunnsoft.com) * http://www.sunnsoft.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 { /** * Change something to string * @param obj * @return */ public static String str(Object obj) { return obj == null ? null : obj.toString(); } }