Interfaces in Java | The Abstraction through Interfaces | Multiple Inheritance in Java by Interface

An interface in Java is a blueprint of a class. It has static constants and abstract methods. The interface in Java is a mechanism to achieve abstraction. There can be only abstract methods in the Java interface, not method body. It is used to achieve abstraction and multiple inheritance in Java. In other words, you can say that interfaces can have abstract methods and variables. It cannot have a method body. Link of this video note: https://drive.google.com/file/d/1BbDJfA909gRJ3tMpMVytIEWgfTQIdQKI/view?usp=sharing 0:00 Interfaces 1:37 Similarity with classes 2:14 Diff with classes 5:49 properties 7:10 declare interfaces 9:20 inheriting interfaces 15:30 multiple inheritance with classes 17:00 multiple inheritance with interfaces 19:00 using online compiler 19:58 extending interfaces 24:30 overriding methods of interfaces 28:48 extending multiple interfaces 30:11 interface references 34:45 nested interfaces 39:00 interface inside class

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