Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...

So, the IDGView class is dependent on the IDGBlogEntry class to display contents (blog entries) in the user interface. Hence there exists a dependency relationship between the IDGView and ...

The first major Kotlin release of 2021 is now here. Kotlin 1.5 adds JVM records, sealed interfaces, inline classes, and the new JVM IR compiler. JVM records are classes that carry a fixed set of ...