If you’ve read my Java 101 tutorial introducing static classes and inner classes, you should be familiar with the basics of working with nested classes in Java code. In this Java tip, you’ll ...

The following class demonstrates which Map implementations and which nested Map classes are Serializable and which are not for several popular standard Map implementations.

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

I have an interface that returns a class containing common classes. But where do I define the class? What I want is something like: public interface Foo { String getName(); FooType getFoo(int a ...

Dive deeper into Java pattern matching techniques with these examples that range from nested records to type inference, variables and generics.