Here you can find the source of peekNext(ListIterator
public final static <T> T peekNext(ListIterator<T> iterator)
//package com.java2s; /**//from w ww . j a v a 2 s.c om * Copyright 2013 European Parliament * * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by the European Commission - subsequent versions of the EUPL (the "Licence"); * You may not use this work except in compliance with the Licence. * You may obtain a copy of the Licence at: * * http://joinup.ec.europa.eu/software/page/eupl * * Unless required by applicable law or agreed to in writing, software distributed under the Licence is distributed on an "AS IS" basis, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the Licence for the specific language governing permissions and limitations under the Licence. */ import java.util.ListIterator; public class Main { public final static <T> T peekNext(ListIterator<T> iterator) { T next = iterator.next(); iterator.previous(); return next; } }