I don't see any error on your code, everything is well written and simple. Except trying putting PUBLIC on your Class displayer. If you encounter the same problem again try to rebuild your whole code and try to recompile the whole code. Even try restarting your personal computer.
I don't know but I am guessing 666 or 777 or 888.
9 is the correct answer. 4*2=8 loops are executed, moving the count from 1 to 9.
