JLabel is a subclass of JContainer. JContainer offers a public method named setFont(), so you can call it from any place in your program, where you have a reference to the label object (the Lives’ constructor is a valid place though). The possbility to change a super class’ attribute depends on its visibilty (for example … Read more
Introduction Instance variables are an important part of object-oriented programming, as they allow us to store data associated with an object. When a superconstructor is used, the instance variables created within it can be accessed and changed by the subclass. In this article, we will discuss how to access and change the instance variables created … Read more
I think this may be primarily opinion based. The way I see it, keeping things simple is sometimes the smarter way to design. To have the compiler accept some code that the compiler currently doesn’t accept, that would (at a minimum) require more complexity. The compiler would have the additional burden of determining which constructs … Read more