Here you can find the source of readProcessAsString(Process proc)
public static String readProcessAsString(Process proc) throws InterruptedException
//package com.java2s; /*// www. ja v a2s .com Copyright (c) 2012 IBM Corp. 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.*; public class Main { public static String readProcessAsString(Process proc) throws InterruptedException { InputStream is = new BufferedInputStream(proc.getInputStream()); StringBuffer fStr = new StringBuffer(); InputStream err = new BufferedInputStream(proc.getErrorStream()); try { BufferedReader reader = new BufferedReader( new InputStreamReader(is)); BufferedReader ereader = new BufferedReader( new InputStreamReader(err)); String line = null; String errLine = null; while (((line = reader.readLine()) != null) || ((errLine = ereader.readLine()) != null)) { if (line != null) { fStr.append(line).append("\n"); } if (errLine != null) { System.err.println(errLine); } } reader.close(); } catch (Exception e) { throw new Error(e); } return fStr.toString(); } }