Making the right conclusion

Main Idea: You have 3 classes: A, B, and C. Each class has methods that print messages. The methods in these classes -- call each other --- in a specific order to produce the specific output pattern. ... access / override / inheritance Output: C class, method2 A class, method2 A class, method1 B class, method1 // An object of class C is created but referenced as type A can use it like an A object, but it still has all the features of C // create an object using the C class model but refer to it as an A type, allowing use // in a more general way while still having all the specific features of C Program Flow Call method2 on the C object: This starts with C’s method2, which prints “C class, method2”. Then it calls method1 from B. B’s method1: This first calls method2 from A, which prints “A class, method2”. Then A’s method2 calls its own method1, which prints “A class, method1”. After that, B’s method1 prints “B class, method1”. Output printed in order ...

First time I see red error in intellij but program run without error.

Why make the class A's method1 private allows to his method2 to call his method1 and not the class C one's ?

This one has to be verified online as Intellij doesn't allow you to compile the code

The only solution acceptable by the verifier won't compile. However, a good solution displaying correct results is not acccepted by the verifier :(

I had to verify online for this to work. Intellij had a problem with ambiguous method call