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.util.*; public class Main { @SuppressWarnings({ "unchecked" }) public static <E> List<E> asList(E... elements) { if (elements == null || elements.length == 0) { return Collections.EMPTY_LIST; } // Avoid integer overflow when a large array is passed in int capacity = computeListCapacity(elements.length); ArrayList<E> list = new ArrayList<E>(capacity); Collections.addAll(list, elements); return list; } static int computeListCapacity(int arraySize) { return (int) Math.min(5L + arraySize + (arraySize / 10), Integer.MAX_VALUE); } }