Java tutorial
//package com.java2s; /* * Dynalloy Translator * Copyright (c) 2007 Universidad de Buenos Aires * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA, * 02110-1301, USA */ import java.util.HashSet; import java.util.Set; public class Main { public static <T> Set<T> diff(Set<T> s1, Set<T> s2) { Set<T> result = new HashSet<T>(s1); result.removeAll(s2); return result; } }