Java tutorial
//package com.java2s; /** * Copyright 2009, 2010 The Regents of the University of California * Licensed under the Educational Community 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.osedu.org/licenses/ECL-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; import java.util.Set; public class Main { /** * Turns a var arg list into a set. * <p/> * Returns a {@link java.util.HashSet}. */ public static <A> Set<A> asSet(A... as) { Set<A> r = new HashSet<A>(as.length); for (A a : as) r.add(a); return r; } }