Java tutorial
//package com.java2s; /* * SubCherry - Cherry Picking with Trac and Subversion * Copyright (C) 2014 Bernhard Haumacher and others * * 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 3 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, see <http://www.gnu.org/licenses/>. */ import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Comparator; import java.util.List; public class Main { public static <K extends Comparable<? super K>> List<K> sorted(Collection<K> collection) { List<K> requiredTicketIds = new ArrayList<>(collection); Collections.sort(requiredTicketIds); return requiredTicketIds; } public static <K> List<K> sorted(Collection<K> collection, Comparator<? super K> order) { List<K> requiredTicketIds = new ArrayList<>(collection); Collections.sort(requiredTicketIds, order); return requiredTicketIds; } }