Here you can find the source of newHashSet()
public static <E> HashSet<E> newHashSet()
//package com.java2s; /*/*from w w w . ja v a 2s . co m*/ * Copyright (C) 2012 The Android Open Source 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.HashSet; public class Main { public static <E> HashSet<E> newHashSet() { return new HashSet<E>(); } }