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.

The difference between abstract classes and interfaces has long vexed Java developers. Find out how Java 8's default methods introduce both new complexity and new options to that familiar ...

In Java, an abstract class is similar to an interface. There are some differences between the abstract class and the interface. It is important to think about how we handle them correctly. I am going ...

Abstract class can have abstract and non-abstract methods. Interface can have only abstract methods. Since Java 8, it can have default and static methods also. Abstract class can have final, non-final ...

While Designing applicaiton we need to design carefully. Basically, Interface is used in most of the cases where we need to use contract. Contract will have list of method signatures only and we will ...