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 ...

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...

Kotlin was designed to bring more flexibility and flow to programming in the JVM. Here's an in-depth look at how Kotlin makes working with classes and objects easier and introduces coroutines to ...

Google today announced that it is making Kotlin, a statically typed programming language for the Java Virtual Machine, a first-class language for writing Android apps. Kotlin’s primary sponsor is ...

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 and ...

Instance main methods and unnamed classes, coming in Java 21, will forever change how developers learn Java and bootstrap applications. Why? They provide a simple, clean and concise syntax to launch ...