JavaRunCommand.java

import java.io.*;

public class JavaRunCommand {
    public static void main(String args[]) {
        String s = null;
        String navn = "Jeanette";
        String nummer = "99998888";

        try {
            Process p = Runtime.getRuntime().exec("cowsay Hei mitt navn er " + navn + " og mitt nr er "+ nummer+".");

            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);
        }
    }
}