Java tutorial
//package com.java2s; /* * Copyright (c) 2012, Mayocat <hello@mayocat.org> * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ import java.util.Collections; import java.util.List; public class Main { public static void move(List<?> collection, int indexToMoveFrom, int indexToMoveAt) { if (indexToMoveAt >= indexToMoveFrom) { Collections.rotate(collection.subList(indexToMoveFrom, indexToMoveAt + 1), -1); } else { Collections.rotate(collection.subList(indexToMoveAt, indexToMoveFrom + 1), 1); } } }