Java tutorial
//package com.java2s; /** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.lang.reflect.Array; public class Main { /** * Concatenates two arrays * * @param existingArray * an existing array * @param elements * the elements to add to the end of it * @return */ @SuppressWarnings("unchecked") public static <E> E[] array(final E[] existingArray, final E... elements) { if (existingArray == null) { return elements; } Object result = Array.newInstance(existingArray.getClass().getComponentType(), existingArray.length + elements.length); System.arraycopy(existingArray, 0, result, 0, existingArray.length); System.arraycopy(elements, 0, result, existingArray.length, elements.length); return (E[]) result; } }