An interface is a collection of abstract methods that provide full abstraction. Interfaces are needed for full abstraction and to support multiple inheritance. An interface is declared using the interface keyword and can contain constant variables and abstract public methods that implementing classes are required to implement. A class implements an interface while a class can extend another class or implement multiple interfaces for inheritance.

1. What is Interface?
Interface
• An interface is a collection of Abstraction
method
• It is 100% Abstraction.

2. Why do we need an Interface?
For Fully Abstraction .
It support multiple inheritance.

3. Declaring an interface
Interface keyword is used to an interface
Interface Animal {
}

4. Interface Variable and method
Interface keyword is used to an interface
Interface Animal {
Int speed 30 ; Constant
Void eat(); compiler public abstract void ea
}

5. class
interfaceclass
interface
class
interface
extends extends implement

7. Try Catch Handling

8. Try Catch Handling

9. Try Catch Handling