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 About static classes in ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may extend it.

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

However, an ideal solution would be to restrict the inheritance to a few specific classes. That's exactly where the sealed class comes into the picture. What is a sealed class? Sealed classes, ...

The Kotlin vs Java debate is a new one, with each language having their own merits But what exactly makes them stand apart? That's what we aim to explore.