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 ...

Verify your understanding of the grammar, object-oriented programming, exceptions, and collections covered in the Java ...

Variables of different types are just half of the story. The key idea is that the data that you store in variables can be used in computations with the help of suitable operators. In this section we ...

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...