My thread program plz help

Question

have done this so far, but I am getting an error on main class
I believe its how to get the command (BufferedReader and StringTokenizer methods)
Please give me a hint. Code Below:
by the way, I have to create myshell with differents commands working in differents threads. (working on NetBeans)
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class MyShell
public static void main(String args[]) throws IOException
boolean exit = false;
while (!exit)
// Modification of txt into String
System.out.println("There is MyShell >>> ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
// Devide whole string into different sub-strings(tokens)
// and check if there is more tokens to read.
String input = in.readLine();
StringTokenizer token = new StringTokenizer(input, "&");
while(token.hasMoreTokens())
String[] command = new String[3];
command[0] = "cdm.exe";
command[1] = "/C";
command[2] = token.nextToken();
if(command[2].equals("exit"))
System.exit(0);
exit = true;
Runtime run = Runtime.getRuntime();
Process proc = run.exec(command);
thread_1 errorMessage = new thread_1(proc.getErrorStream(), "ERRORp");
thread_1 outputMessage = new thread_1(proc.getInputStream(), "Output ");
errorMessage.start();
outputMessage.start();
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
class thread_1 extends Thread
InputStream input;
String str;
thread_1(InputStream input, String str)
this.str = str;
this.input = input;
// Override run method
public void run()
try
InputStreamReader iReader = new InputStreamReader(input);
BufferedReader bReader = new BufferedReader(iReader);
String output = null;
while ((output = bReader.readLine())!= null)
System.out.println(str + ">>> " + output);
catch (IOException e)
e.printStackTrace();
}

Answer 1

There is my main + thread_1 class:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class MyShell
    public static void main(String args[]) throws IOException
        boolean exit = false;
        while (!exit)
            // Modification of txt into String
            System.out.println("There is MyShell >>> ");
            BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
            // Devide whole string into different sub-strings(tokens)
            // and check if there is more tokens to read.
            String input = in.readLine();
            StringTokenizer token = new StringTokenizer(input, "&");
            while(token.hasMoreTokens())
                String[] command = new String[3];
                command[0] = "cdm.exe";
                command[1] = "/C";
                command[2] = token.nextToken();
                if(command[2].equals("exit"))
                    System.exit(0);
                    exit = true;
                Runtime run = Runtime.getRuntime();
                Process proc = run.exec(command);
                thread_1 errorMessage = new thread_1(proc.getErrorStream(), "ERROR");
                thread_1 outputMessage = new thread_1(proc.getInputStream(), "Output ");
                errorMessage.start();
                outputMessage.start();
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
class thread_1 extends Thread
    InputStream input;
    String str;
    thread_1(InputStream input, String str)
        this.str = str;
        this.input = input;
    // Override run method
    public void run()
        try
            InputStreamReader iReader = new InputStreamReader(input);
            BufferedReader bReader = new BufferedReader(iReader);
            String output = null;
            while ((output = bReader.readLine())!= null)
                System.out.println(str + ">>> " + output);
    catch (IOException e)
        e.printStackTrace();
}There is the ERROR:
init:
deps-jar:
Compiling 1 source file to C:\Documents and Settings\PlinioG\My Documents\NetBeansProjects\MyShell\build\classes
compile:
run:
There is MyShell >>>
dir
Exception in thread "main" java.io.IOException: Cannot run program "cdm.exe": CreateProcess error=2, The system cannot find the file specified
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
        at java.lang.Runtime.exec(Runtime.java:593)
        at java.lang.Runtime.exec(Runtime.java:466)
        at MyShell.main(MyShell.java:38)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
        at java.lang.ProcessImpl.start(ProcessImpl.java:30)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
        ... 3 more
Java Result: 1
BUILD SUCCESSFUL (total time: 7 seconds)