# Problem 5.3: Implement a semaphore in Java

Implement a Java class `Semaphor` with methods `p()` and `v() `as decribed in the lecture. Your class
should work for any number of threads using the same semaphore concurrently. Test your class using
the class `DiningPhilosophersWithForkAccessSema` (on the server in the source code folder
for chapter 4) by replacing all uses of `java.util.concurrent.Semaphore` by uses of your own
`Semaphor` class – the program's behavior should still be correct (though not identical, since the
output of the program is not determinate).