That's exactly where the sealed class comes into the picture. Sealed classes, proposed in JEP 409 and available since Java 17 ... the type of inheritance control previously described. Here's how we ...

Java’s interface language ... The word interface conjures up the image of a place where two independent systems meet for communication. For example, a human being and a computer communicate ...

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 ...