What is the use of an interface ?
An interface tells that what a class can do. It is a good object oriented design to use interfaces in your program. When a class implements the interface, it is actually contracting to implement all the functionality of the interface. Interfaces also support multiple inheritance.
An interface tells that what a class can do. It is a good object oriented design to use interfaces in your program. When a class implements the interface, it is actually contracting to implement all the functionality of the interface. Interfaces also support multiple inheritance.