java.lang.ProcessBuilder.redirectErrorStream(boolean redirectErrorStream) java.lang.ProcessBuilder.redirectErrorStream() java.lang.ProcessBuilder.start() java.lang.ProcessBuilder.redirectErrorStream(boolean redirectErrorStream) package com.codingdict; public class ProcessBuilderDemo { public static void main(String[] args) { // create a new list of arguments for our process String[] list = {"notepad.exe", "test.txt"}; // create the process builder ProcessBuilder pb = new ProcessBuilder(list); // Redirect the errorstream pb.redirectErrorStream(true); System.out.println(""+pb.redirectErrorStream()); } } java.lang.ProcessBuilder.redirectErrorStream() java.lang.ProcessBuilder.start()