Learn how to use pattern-matching features in your Java programs, including pattern matching with switch statements, when clauses, sealed classes, and a preview of primitive type pattern matching in ...

The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, and ...

Twenty-three years ago, in his Design Principles and Design Patterns article, Robert "Uncle Bob" Martin boiled down the Liskov substitution principle to the idea that "derived classes should be ...