Java tutorial
//package com.java2s; /** * Copyright (C) 2010 Marcellus C. Tavares * * 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.Collection; import java.util.Iterator; public class Main { public static <E> E at(Collection<E> collection, int index) throws Exception { Iterator<E> itr = collection.iterator(); for (int i = 0; itr.hasNext(); i++) { E element = itr.next(); if (i == index) { return element; } } return null; } }