I guess answer would be SubCafe4Java SubCafe4Java But when i run the programme it shows SuperCafe4Java SuperCafe4Java
We are calling superFoo.get("super") i.e., superclass reference with subclass object in it, also parameter "super" is a String object. So it is more appropriate to call subclass get() but why superclass get() called?
I can't understand.... thanks in advance for any help...
when you are redifining the function in the child class you are not overloading the base class function, because the base class is having parameter as Object but child class is having parameter as String. So it is not covariant return.
and when you are calling the funciton you are calling using the base class version. so always function of the base class is getting called
Where are the covariant retrun types? I think you got confused and pretends to think that the methods are overridded.Infact the methods are overloaded in first two classes.To make it a valid overrided method with covariant return type make change as