Runtime.exec - hangs or doesn't produce output

Question

Hey,
I've been trying to get my program to run an application that I downloaded off the net. It is a console based telnet application build for windows. Now, I've been trying to bascially automate some telnet stuff but it doesn't seem to work at the moment that is it doesn't give me output and it causes my computer to slow down. I've noticed that it does start the application which causes the slow down but I was wondering why it doesn't give me any output. Here is the code that I have
import java.io.*;
public class Main
  public static void main(String[] args)
    String command = new String[3];
    command[0] = "cmd.exe";
    command[1] = "/C";
    command[2] = "D:\\Temp\\telnet\telnet.exe";
    try
      Process p = Runtime.getRuntime().exec(command);
      BufferdReader stdin = new BufferedReader(new InputStreamReader
                                               (p.getInputStream()));
      BufferedReader stderr = new BufferedRader(new InputStreamReader
                                               (p.getErrorStream()));
      PrintStream stdout = new PrintStream(p.getOutputStream());
      String line = "";
      while((line = stderr.readLine()) != null)
        System.out.println(line);
      System.out.println();
      while((line = stdin.readLine()) != null)
        System.out.println(line);
      p.destroy();
    catch(Exception ex)
      System.out.println("Exception: " + ex.getMessage());
      System.exit(-1);
}Could some please help me and trying to get this program to work?
Thanks,
Ny

Answer 1

now try it
you should get
D:\Temp\telnet' is not recognized as an internal or external command,
operable program or batch file.
as an output
import java.io.*;
public class Main{
  public static void main(String[] args)
    String[] command = new String[3];
    command[0] = "cmd.exe";
    command[1] = "/C";
    command[2] = "D:\\Temp\\telnet\telnet.exe";
    try
      Process p = Runtime.getRuntime().exec(command);
      BufferedReader stdin = new BufferedReader(new InputStreamReader
                                               (p.getInputStream()));
      BufferedReader stderr = new BufferedReader(new InputStreamReader
                                               (p.getErrorStream()));
      PrintStream stdout = new PrintStream(p.getOutputStream());
      String line = "";
      while((line = stderr.readLine()) != null)
        System.out.println(line);
      System.out.println();
      while((line = stdin.readLine()) != null)
        System.out.println(line);
      p.destroy();
    catch(Exception ex)
      System.out.println("Exception: " + ex.getMessage());
      System.exit(-1);
}