Here you can find the source of reverse(Stream
@SuppressWarnings("unchecked") public static <T> Stream<T> reverse(Stream<T> input)
//package com.java2s; /*/*from w w w . j av a 2s . c o m*/ * Copyright 2000-2013 JetBrains s.r.o. * Copyright 2014-2018 AS3Boyan * Copyright 2014-2014 Elias Ku * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.stream.IntStream; import java.util.stream.Stream; public class Main { @SuppressWarnings("unchecked") public static <T> Stream<T> reverse(Stream<T> input) { Object[] temp = input.toArray(); return (Stream<T>) IntStream.range(0, temp.length).mapToObj(i -> temp[temp.length - i - 1]); } }