In this tutorial you’ll learn how to work with static member classes and the three types of inner classes in your Java programs. What you’ll learn in this Java tutorial.

The three primary types of class loaders in Java are as follows: Bootstrap class loader: Responsible for loading the core Java classes that are required for the JVM to function.

Sealed classes, proposed in JEP 409 and available since Java 17, let developers limit and control how deeply a component's type hierarchy can extend. With sealed classes, a developer can essentially ...

Another type of class that wasn't in Java 11 but that you will find in Java 17 is sealed classes. Sealed classes and interfaces are designed to allow you to control which of the other classes are ...

It means that on newer JDKs, a wrapper class will be created automatically when a primitive type is used anywhere a reference type is expected. As such, on post JDK 1.5 versions of the JVM, the ...