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 ...

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 ...

5) Classes which implement the Interface have to define the abstract methods 6) By default, ALL METHODS in an interface are decleared as public, abstract. It will never be static.(BECAUSE ...