Runtime.getRuntime(). Passing parameters

Question

Hello,
is it possible to pass input to a console application called by Runtime.getRuntime()? Concretely: I want to call "ij" of the Java/Derby DB system and make it process a command/script file. The following code run under WinXP returns 0 (success), but that's all that happens.
import java.io.*;
public class RuntimeTst{
  static public void main(String args[]) {
    String command;
    command ="cmd /C C:\\Programs\\Java\\jre1.6.0_03\\bin\\java ";
    command+= "-cp C:\\Programs\\JavaDB\\lib\\derby.jar;";
    command+=     "C:\\Programs\\JavaDB\\lib\\derbytools.jar ";
    command+= "org.apache.derby.tools.ij ";
    command+= "run 'MyScript.sql'";
    try {
      Process p= Runtime.getRuntime().exec(command);
//     By convention, 0 indicates normal termination.
      System.out.println(p.waitFor());
    catch(InterruptedException e) {
      System.out.println (e);
    catch(IOException e) {
      System.out.println (e);
}

Answer 1

Yes, Jbish, you're right. I was just so glad that it worked at all, that I posted immediately.
Now here comes what I hope to be a complete demo:
Demonstrates how to pass input to a programme launched by Runtime.getRuntime().
Here we call "ij" (the CLI to the java db) and pass the command line
"run 'MyScript.sql'".
See Michael C. Daconta's article on
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html?page=1
import java.io.*;
import java.util.*;
public class PassInput {
  static public void main(String args[]) {
    String command;
    command ="cmd /C /Programs/Java/jre1.6.0_03/bin/java "+
     "-cp /Programs/JavaDB/lib/derby.jar;"+
         "/Programs/JavaDB/lib/derbytools.jar "+
     "org.apache.derby.tools.ij";
    try {
      Process p= Runtime.getRuntime().exec(command);
//     Any error message?
      StreamGobbler errorGobbler= new StreamGobbler(p.getErrorStream(),"ERROR");
//     Any output?
      StreamGobbler outputGobbler=
                    new StreamGobbler(p.getInputStream(), "OUTPUT");
      errorGobbler.start();
      outputGobbler.start();
      OutputStream os= p.getOutputStream();
      os.write("run 'MyScript.sql'".getBytes());
      os.write("exit".getBytes());
      os.flush();
      os.close();
//     By convention, 0 indicates normal termination.
      System.out.println(p.waitFor());
    catch(InterruptedException e) {
      System.out.println (e);
    catch(IOException e) {
      System.out.println (e);
  static class StreamGobbler extends Thread {
    InputStream is;
    String type;
    StreamGobbler(InputStream is, String type) {
        this.is = is;
        this.type = type;
    public void run() {
      try {
     BufferedReader br= new BufferedReader(new InputStreamReader(is));
     String line=null;
     while ( (line=br.readLine()) != null)
       System.out.println(type + "> " + line);   
      catch (IOException ioe) {
     ioe.printStackTrace(); 
}Thanks again.