Thread Puzzle

You have thread T1, T2 and T3, how will you ensure that thread T2 run after T1 and thread T3 run after T2?

Solution 1:

try

{

t1.start();

t1.join();

t2.start();

t2.join();

t3.start();

t3.join();

} catch (InterruptedException e) {

e.printStackTrace();

}

Solution 2:

ExecutorService excutoService = Executors.newSingleThreadExecutor();

excutoService.submit(t1);

excutoService.submit(t2);

excutoService.submit(t3);