Java tutorial
//package com.java2s; /******************************************************************************* * Copyright 2015 xWic group (http://www.xwic.de) * * 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. * *******************************************************************************/ import java.util.Collection; public class Main { /** * @param element * @param collection */ public static <O> void addIfNotNull(final O element, final Collection<O> collection) { if (element != null) { collection.add(element); } } }