Interface in Java we can implemt multiple inheritance in java or related all technology of Java

Interface support functionality of multiple inheritances.

Interface has les cupping.

It is use to fully abstraction

Multiple inheritances is not support in java so how we can use in interface multiple inheritance:-

It is supported because of implementation provide by implementation.

Nested interface:-

·         Nested interface must be public if it is declaration inside of interface but it can have access modifiers if declaration within class

·         Nested interface are declare as static.

·         Inside the interface we can define class it is possible to declare class in side of interface.