Running a exe (java command) through Java Code

Question

Hi I have a program that runs on command line using java command.This program processes a text file that it takes as an argument.I have many files to process so I cannot give command for each individual file.
Is it possible that I use Java command to run this program for many files in a loop?
If yes HOW?

Answer 1

It has many parameters but one parameter for input file. But I think this is not a problem, I can change it as you said.Now I have tried this code:
Note:In this code I can change B.txt each time in a loop for new input file. (This is just for check)
import java.io.*;
public class Test3
     public static void main(String[] args)
          Runtime run = Runtime.getRuntime();
          try
Process pp=run.exec("C:/Program Files/Java/jdk1.6.0/bin/java -mx300m -classpath  B.txt > sample-output.txt");
               BufferedReader in =new BufferedReader(new InputStreamReader(pp.getErrorStream()));
               String line;
               while ((line = in.readLine()) != null)
                    System.out.println(line);
               int exitVal = pp.waitFor();
               System.out.println("Process exitValue: " + exitVal);
          catch (Exception e)
               e.printStackTrace();
               System.out.println(e.getMessage());
} It compiles well but gives exception NoClassDefFound when I use java command to interpret it.Can u help?
Edited by: kimskams on Jun 29, 2008 7:24 AM