How to stop a timer after certain number of times

Trying to use a Timer to do run this 4 times with intervals of 10 seconds each.

I have tried stopping it with a loop, but it keeps crashing. Have tried using the schedule() with three parameters, but I didn't know where to implement a counter variable. Any ideas?

final Handler handler = new Handler(); 
Timer timer2 = new Timer(); 

TimerTask testing = new TimerTask() {
    public void run() { 
        handler.post(new Runnable() {
            public void run() {
                Toast.makeText(MainActivity.this, "test",
                    Toast.LENGTH_SHORT).show();

            }
        });
    }
}; 

int DELAY = 10000;
for (int i = 0; i != 2 ;i++) {
    timer2.schedule(testing, DELAY);
    timer2.cancel();
    timer2.purge();
}