Problem in stopping the process for a while

Question

Hi all,
I am facing problem in stopping the process when i call *.exe from java. here i am explaning my problem in detail.
main(){
m1();
m2();
m1(){
Runtime r=Runtime.getRuntime();
Process p=r.exec("solve1.exe");
// this exe file will create a text file (temp.txt), and it is creating it with out any problem.
m2(){
using temp.txt here.
problem is when i call m1() it will create temp.txt , but by the time i call m2() temp.txt is saving into the disk and m2() is not able to find the file.
here what i need is there should be some time gap to before i call m2(); and i tried even with
p.waitfor(); in m1() -if i use this the program is not exiting out of runtime??
any one kindly hepl me
bye.

Answer 1

A test app(if you don't have sol, then pick another app)
public class WaitForTest{
    private WaitForTest(){
        try {
            Process p = Runtime.getRuntime().exec("sol.exe");
            System.out.println("Waiting....");
            p.waitFor();
            System.out.println("Done waiting") ;             
        catch(Exception e)
                e.printStackTrace();
        static public void main(String[] args){
            new WaitForTest();
}