Here you can find the source of readStream(Stream
private static Set<String> readStream(Stream<String> s, boolean lowercase)
//package com.java2s; /*/*from w w w .ja v a 2 s. c o m*/ * Copyright 2016 * Ubiquitous Knowledge Processing (UKP) Lab * Technische Universit?t Darmstadt * <p> * 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 * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * 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.Set; import java.util.stream.Collectors; import java.util.stream.Stream; public class Main { private static Set<String> readStream(Stream<String> s, boolean lowercase) { return s.map(String::trim).filter(l -> !l.isEmpty()).filter(l -> !l.startsWith("#")) .map(l -> lowercase ? l.toLowerCase() : l).collect(Collectors.toSet()); } }