[Solved] How come @override works in Java?

by 


 AAA ref1 = new CCC(); 
 BBB ref2 = new CCC(); 
 CCC ref3 = new CCC();

Is there anyone who can explain how it works inside the complier?

In this case ref1 is a reference to a AAA object and since CCC inherits from AAA it is also an AAA so this assignment is allowed by the compiler and by the JVM. ref2 is a reference to a BBB and since new CCC() is also a BBB by inheritance this assignment is allowed.

EDIT: With your modified code, it prints as you expect as you are calling loadMethod(int) and loadMethod(double)

In the first three calls you are using an overridden method, in the second three calls you are using an overloaded method.

Before your edit….

If you correct the code so it compiles you get

CCC's Method
CCC's Method
CCC's Method
void Method
void Method
void Method

run here http://ideone.com/r7K2wI

I sort of get what you are trying to say up to “Syso(“CCC’s Method”) must occurs as a result.” but

Each loadMethod will split out “void int and double Method” because the classes they initially used are AAA and BBB.
thanks for reading!

No, there is no way a call loadMethod() will call loadmethod(double) as it can’t and doesn’t know which double you would have passed to it.

9

solved How come @override works in Java?