CyclicBarrier Class

Question 1

Constructor that creates a CyclicBarrier object with the number of threads waiting on it specified. Throws IllegalArgumentException if numThreads is negative or zero.

Answer 1

CyclicBarrier(int numThreads)

Question 2

Same as CyclicBarrier(int numThreads), additionaly takes the thread to call when the barrier is reached.

Answer 2

CyclicBarrier(int parties, Runnable barrierAction)

Question 3

Blocks until the specified number of threads have called await() on this barrier. The method returns the arrival index of this thread. Has an overloaded version that takes a time-out period as an additional option. It throws a TimeoutException if all other threads aren’t reached within the time-out period.

Answer 3

int await()

Question 4

Returns true if the barrier is broken. A barrier is broken if at least one thread in that barrier was interrupted or timed-out, or if a barrier action failed throwing an exception.

Answer 4

boolean isBroken()

Question 5

Resets the barrier to the initial state. If any threads are waiting on that barrier, they will throw the BrokenBarrier exception.

Answer 5

void reset()