i get cannot find symbol error in compile time

Question

import java.io.File;
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.io.*;
 import java.io.InputStream;
 class pbdemo {

     static publ         


        

Answer 1

You are trying to get an InputStream from a ProcessBuilder and that's wrong.

ProcessBuilder.start() returns a Process object, and that's the one who has a getInputStream() method.

Try switching that line for this one.

BufferedReader br=new BufferedReader(new InputStreamReader(pb.start().getInputStream()));

Or

Process pro = pb.start();
BufferedReader br=new BufferedReader(new InputStreamReader(pro.getInputStream()));