How to use command promt for calling a java programe

Question

Hi
i am using command promt to call my class CreateProdcut
i am trying to call cmd.exe and then calling a class with argument *"java CreateProduct -----argument----"*
Following is the code i am using to call cmd.exe as a seprate process
Problem :-  I am not able to see command promt and called class o/p
import java.io.*;
public class ExecCreateProduct{
     public static void main(String args[]) throws IOException, java.lang.InterruptedException{
          Runtime runtime = Runtime.getRuntime();
                         Process pr = runtime.exec ("cmd /c"+"java "+"CreateProduct "+"Hello World"+"HHH");
           try {
           String line;
           BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()));
                while ((line = input.readLine()) != null) {
               System.out.println(line);
               input.close();
               } catch (Exception err) {   
                    err.printStackTrace();
          int exitVal = pr.waitFor();
        System.out.println("Exited with error code "+exitVal);
}Edited by: rahul_p on Jun 9, 2009 2:58 AM

Answer 1

do it like this it works for me :)
try{
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec("java CreateProduct -----argument-----");
InputStream stderr = proc.getErrorStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
while ( (line = br.readLine()) != null)System.out.println(line);
int exitVal = proc.waitFor();
exitVal!=0?System.out.println("Error"):System.out.println("success");
catch(Exception e){
System.ourt.println(e);
}