Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

Here's everything you need to know about initializing Java classes and objects before executing them in the JVM.

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.

Don't overcomplicate your classes. That's what SOLID's single responsibility principle in Java means. Here's an example of how to do SOLID right in Java.