Java tutorial
//package com.java2s; /* * Copyright (C) 2005-2014 Alfresco Software Limited. * * This file is part of Alfresco * * Alfresco is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Alfresco is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Alfresco. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.Set; import java.util.TreeSet; public class Main { /** * Returns an immutable Serializable Set containing the values. * @param <T> T * @param values T... * @return Set<T> */ public static <T> Set<T> unmodifiableSet(T... values) { return unmodifiableSet(Arrays.asList(values)); } /** * Returns an immutable Serializable Set containing the values. * @param <T> T * @param values Collection<T> * @return Set<T> */ public static <T> Set<T> unmodifiableSet(Collection<T> values) { TreeSet<T> set = new TreeSet<T>(values); return Collections.unmodifiableSet(set); } }