Here you can find the source of sortAscending(Iterable
public static <T extends Comparable> Iterable<T> sortAscending(Iterable<T> elements)
//package com.java2s; /*// www .java 2 s . co m * Copyright (c) 2012 Rice University. * * This file is part of PhyloNet. * * PhyloNet 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. * * PhyloNet 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 PhyloNet. If not, see <http://www.gnu.org/licenses/>. */ import java.util.*; public class Main { public static <T extends Comparable> Iterable<T> sortAscending(Iterable<T> elements) { List<T> elementsList = toList(elements); Collections.sort(elementsList); return elementsList; } public static <T2, T1 extends T2> List<T2> toList(Iterable<T1> elements) { List<T2> result = new LinkedList<T2>(); for (T1 element : elements) { result.add(element); } return result; } }