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Has anyone got any idea how to implement a rudimentary semaphore in java without making use of wait(), notify() or synchronize.I am not looking for a solution to this problem just a pointer in the right direction because I amd totally lost on this.
in a very simple simple (again) simple way you could implement this using a simple int or boolean.
Test the int or boolean before grant acess. If it is 0 (tired of boolean), add 1 and continue. If not do Thread.yield() and try again latter. When you release, remove 1 from int and continue.
naive implementation, but works fine.