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.Collections; import java.util.HashSet; public class Main { /** * Create a hashed set from an array. * * @param <T> * type * @param elements * elements in the set. * @return the set. * @see Arrays#asList(Object[]) */ public static <T> HashSet<T> asHashSet(@SuppressWarnings("unchecked") T... elements) { HashSet<T> result = new HashSet<T>(); Collections.addAll(result, elements); return result; } }