Here you can find the source of streamOf(Iterable
private static <T> Stream<T> streamOf(Iterable<T> iterable)
//package com.java2s; /*/*from w w w . ja v a 2 s.c o m*/ * Copyright 2013-2017 the original author or authors. * * 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.Iterator; import java.util.Spliterator; import java.util.Spliterators; import java.util.stream.Stream; import java.util.stream.StreamSupport; public class Main { private static <T> Stream<T> streamOf(Iterator<T> iterator) { return StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, Spliterator.ORDERED), false); } private static <T> Stream<T> streamOf(Iterable<T> iterable) { return StreamSupport.stream(iterable.spliterator(), false); } }