Interfaces and Abstract Classes in JAVA

  Interfaces and Abstract Classes in JAVA     While learning Java and its concepts, we have come across the concept called ‘Interfaces’.  The interface in Java can be defined as the blueprint of the class. An interface can have abstract methods and static constants. By using the interface, we achieve abstraction in java.  Interfaces are one of the key features of JAVA and every java developer should know its use and applications. Though when Interfaces come into the picture, they have many advantages and disadvantages.   So first let’s dive into understanding interfaces. When implementing interfaces, the first term we come across is abstract classes. Now, what are abstract classes? Why they are needed? What is the interface? What are the uses of Interfaces? Why do interfaces use abstract classes in them? We will get all these answers in this blog post.   What are Interfaces? The interface is a special mechanism in java that helps to achieve abstraction...