Single inheritance and multiple inheritance How to use the extends keyword in Java Understanding Java class hierarchy When to ... class Account { private String name; private long amount; Account ...

Inheritance and ... s try the same example using composition: import java.util.HashSet; import java.util.Set; public class CharacterCompositionExample { static Set<String> set = new HashSet ...

Classes with clear responsibilities, well-defined boundaries and a proper inheritance hierarchy are your top priorities ... the intended usage patterns for developers using the code. Sealed classes in ...