Retrieving process id from a batch file

Question

Hi friends,
I am having a problem to retrieve the process id from a batch file. I will give the code which I have written and if anyone can help me it will be grateful. I am having time pressure. Here when I call
Process p = rt.exec("checkExec.bat");
the process is getting created. What I need is "I have to get the process id inside the batch file and then I have to store that process id to a file. My problem is "HOW CAN I GET HOLD OF PROCESS ID". Please give some guidance.
!!!!THANKS IN ADVANCE !!!
PROCESSTEST:
public class ProcessTest {
     * @param args
     public static void main(String[] args) throws IOException {
          Runtime rt = Runtime.getRuntime();
          try {
               Process p = rt.exec("checkExec.bat");
          } catch (IOException e) {
                    e.printStackTrace();
CHECKEXEC.BAT
cd bin
java duo.CalledProcess
CALLEDPROCESS
public class CalledProcess {
     * @param args
     public static void main(String[] args) {
          try {
               Runtime rt = Runtime.getRuntime();
               synchronized (rt) {
                    while(true){
                         rt.exec("notepad");
                         long sec = 100000;
                         rt.wait(sec);
          } catch (InterruptedException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
}

Answer 1

problem is "HOW CAN I GET HOLD OF PROCESS ID".You can take it from the Operating System using JNI.