Java tutorial
//package com.java2s; /* * Copyright 2005-2010 the original author or authors. * 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.concurrent.ConcurrentHashMap; public class Main { public static <K, V> ConcurrentHashMap<K, V> newConcurrentHashMap() { return new ConcurrentHashMap<K, V>(); } public static <K, V> ConcurrentHashMap<K, V> newConcurrentHashMap(final int capacity) { return new ConcurrentHashMap<K, V>(capacity); } }