Here you can find the source of readAllFrom(final Reader reader)
public static String readAllFrom(final Reader reader) throws IOException
//package com.java2s; /**/*from www. j a v a 2s.c om*/ * Copyright 2010 CMBI (contact: <Gerrit.Vriend@radboudumc.nl>) * * 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.io.IOException; import java.io.Reader; public class Main { /** reads all lines in a reader into a single string */ public static String readAllFrom(final Reader reader) throws IOException { final StringBuilder buffer = new StringBuilder(); final char[] inputBuffer = new char[1024]; int readlen; while ((readlen = reader.read(inputBuffer)) != -1) { buffer.append(inputBuffer, 0, readlen); } reader.close(); return buffer.toString(); } }