Instead, it exists as a placeholder for class fields and/or class methods. Such a class is known as a utility class. An example of a utility class is the Java standard class library’s Math class.

It’s a good idea to use an abstract class when you need to implement mutable state. As an example, the Java Collections Framework includes the AbstractList class, which uses the state of variables.

TheServerSide has published a number of articles on the tenets of effective RESTful web service design, along with examples of how to actually create a cloud-native application using Spring ...

Use sealed classes in Java to control your inheritance Need to limit the number of possible subclasses in your codebase? Here comes Java's sealed classes to your rescue. Advanced Java pattern matching ...