static void AdultItinerary() {
System.out.println("--- called adult itinerary");
/* This is where you should put your solutions. Make calls
to the BoatGrader to show that it is synchronized. For
example:
bg.AdultRowToMolokai();
indicates that an adult has rowed the boat across to Molokai
*/
pilotLock.acquire();
// While the boat is not at Oahu or there are more than 2 children on Oahu,
// put the adult on Oahu thread to sleep (because we wouldn't send and adult in
// these scenarios).
while (boatLocation != 0 || numChildrenOnOahu >= 2) {
System.out.println("--- can't send an adult to Molokai right now");
adultReadyAtOahu.sleep();
}
System.out.println("--- sending an adult to Molokai");
numAdultsOnOahu--; // an adult is rowing Oahu --> Molokai, so decrement
bg.AdultRowToMolokai();
numAdultsOnMolokai++; // adult has rowed over, so increment
printState();
boatLocation = 1; // boat is now at Molokai
childReadyAtMolokai.wake(); // wake up child at Molokai since it's now their turn
pilotLock.release();
}
static void SampleItinerary() {
// Please note that this isn't a valid solution (you can't fit
// all of them on the boat). Please also note that you may not
// have a single thread calculate a solution and then just play
// it back at the autograder -- you will be caught.
System.out.println("\n ***Everyone piles on the boat and goes to Molokai***");
bg.AdultRowToMolokai();
bg.ChildRideToMolokai();
bg.AdultRideToMolokai();
bg.ChildRideToMolokai();
}