how to execute dos command with options in java

The following bit of code will run the dir command, and then print out for you as well as error. Taken and adapted from (http://www.devdaily.com/java/edu/pj/pj010016)

import java.io.*;

public class JavaRunCommand {

    public static void main(String args[]) {

        String s = null;

        try {

        // run the Windows command (dir)
            // using the Runtime exec method:
            Process p = Runtime.getRuntime().exec("dir");

            BufferedReader stdInput = new BufferedReader(new 
                 InputStreamReader(p.getInputStream()));

            BufferedReader stdError = new BufferedReader(new 
                 InputStreamReader(p.getErrorStream()));

            // read the output from the command
            System.out.println("Here is the standard output of the command:\n");
            while ((s = stdInput.readLine()) != null) {
                System.out.println(s);
            }

            // read any errors from the attempted command
            System.out.println("Here is the standard error of the command (if any):\n");
            while ((s = stdError.readLine()) != null) {
                System.out.println(s);
            }

            System.exit(0);
        }
        catch (IOException e) {
            System.out.println("exception happened
- here's what I know: ");
            e.printStackTrace();
            System.exit(-1);
        }
    } }