The following code fragment shows that this class’s architecture is based on Float and Double static member classes, which both subclass Ellipse2D: ... the Matcher class, in java.util.regex, ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...

Enums restrict a variable to have one of only a few predefined values. The values in this enumerated list are called enums. Inheritance: In Java, classes can be derived from classes. Basically if you ...

The protected access modifier in Java allows a member (fields or methods) of a class to be accessible in the same package and also in subclasses, even if they are in different packages. It strikes a ...