Here you can find the source of sorted(List
public static <X extends Comparable<? super X>> List<X> sorted(List<X> l)
//package com.java2s; /*//from w w w . ja v a2 s .co m * This file is part of the Spider Web Framework. * * The Spider Web Framework 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. * * The Spider Web Framework 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 the Spider Web Framework. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Collections; import java.util.Comparator; import java.util.List; public class Main { /** Sort the given list and return a reference to it */ public static <X extends Comparable<? super X>> List<X> sorted(List<X> l) { Collections.sort(l); return l; } /** Sort the given list, using the given comparator, and return a reference to it */ public static <X> List<X> sorted(List<X> l, Comparator<? super X> comp) { if (comp != null) Collections.sort(l, comp); return l; } }