Inheritance and composition ... it is also clear that this code does not pass the “is a” test. Now let’s try the same example using composition: import java.util.HashSet; import java.util ...

Imagine you are an expert object-oriented Java developer ... create a closed-type system for their components. Sealed classes address precisely the type of inheritance control previously described.

The first half of this introduction to Java inheritance ... method overloading Inheritance can descend through multiple levels, leading to ever-more-specific categories. As an example, Figure ...