Here you can find the source of sort(Collection list)
public static List sort(Collection list)
//package com.java2s; /**//from w ww .ja v a 2 s . c o m * This file is part of PaxmlCore. * * PaxmlCore is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * PaxmlCore 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with PaxmlCore. If not, see <http://www.gnu.org/licenses/>. */ import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; public class Main { public static List sort(Collection list) { return sort(list, true); } public static List sort(Collection list, boolean asc) { List li = new ArrayList(list); if (asc) { Collections.sort(li); } else { Collections.reverse(li); } return li; } }