When default methods were introduced in Java 8, some developers thought they would be the same as abstract classes. That’s not true, however, because interfaces can’t have state. A default ...

To create abstract classes we use the 'abstract' keyword whereas keyword 'interface' is used to make the interfaces in Java. For inheritance the 'extends' keyword is used by the subclasses whereas ...

In later version of Java Interfaces always contained only method declaration. We are not giving method definition in the interfaces because java did not allow multiple inheritance of classes. But in ...

it inherits the properties and methods of the abstract class, making it easier to implement common functionality in multiple classes. How do I implement an interface in Java? In Java, an interface is ...

And the terms and conditions in case of Java interface is to override all the methods of interface. Just like Abstract Classes, Interfaces can't be instantiated but they can have still have Object ...