Java tutorial
//package com.java2s; /*-------------------------------------------------------------------------+ | | | Copyright 2005-2011 The ConQAT Project | | | | 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; import java.util.Iterator; public class Main { /** * Convert collection to array. This is a bit cleaner version of * {@link Collection#toArray(Object[])}. */ @SuppressWarnings("unchecked") public static <T> T[] toArray(Collection<? extends T> collection, Class<T> type) { T[] result = (T[]) java.lang.reflect.Array.newInstance(type, collection.size()); Iterator<? extends T> it = collection.iterator(); for (int i = 0; i < collection.size(); i++) { result[i] = it.next(); } return result; } }