Question

I have a requirement such that my program is suppose to run for a definite period of time.
How could i maintain a timer in java such that the program only runs say for only 30 mins from the program execution start time.

Answer 1

Try this (probably in the main method):

Timer t = new Timer();
t.schedule(new TimerTask() {
  @Override
  public void run() {
    System.exit(0);
  }
}, 30*60000);