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 ...

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 ...

When I first learned to program, it was grasping if statements that helped it all click into place for me. Once you can use if statements, you can build all kinds of useful and interesting tools.

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 ...