Inheritance and composition are two ... Now let’s try the same example using composition: import java.util.HashSet; import java.util.Set; public class CharacterCompositionExample { static ...

Java’s single inheritance limitation ... In that case, I needed multiple inheritance because I was adding the ability to drag and drop objects between the different components of the GUI and ...

Sealed classes address precisely the type of inheritance control previously described. Here's how we can refactor the above example ... developer can add that clause. The modifier non-sealed is the ...