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.
Answer:
The wrong price can also negatively influence sales and cash flow. tbh there is no point to me
Explanation:
Answer
can we get a picture of the problem ?
Explanation:
Do details provide support for the claim
