5 Keywords of Java That Everyone Should Know Intro Java is one of the most popular programming languages in the world, and it's no wonder why. It's easy to use, reliable, and efficient. But if you want to become an expert programmer, you need to know the basics. That's why it's important to familiarize yourself with the five essential keywords of Java that every programmer should know. In this blog post, we will discuss the five most important Java keywords and how they can help you become a better programmer. 1) abstract The keyword “abstract” is used to create abstract classes and methods in Java. An abstract class is a special type of class that cannot be instantiated and provides a partial implementation of its methods. Abstract classes are often used as the basis for creating new classes, or as a way of adding new functionality to existing classes. Abstract methods are methods that have no implementation and must be implemented by any subclass that extends the ...