What Is The Difference Between Abstract Class And Interface?

1.	What Is The Difference Between Abstract Class And Interface?
Answer» An Interface contains METHODS with only signatures and no body. An Abstract class contains method signatures with or without body. A class can implement several interfaces inside it.A class can inherit from a single Abstract class. By default, interface has public ACCESS MODIFIERS.It cannot use any other access modifiers. An Abstract class can have any access modifiers. No variables and constants can be defined in a class.An abstract class can have variables and constants.

Answer»

An Interface contains METHODS with only signatures and no body.
An Abstract class contains method signatures with or without body.
A class can implement several interfaces inside it.A class can inherit from a single Abstract class.
By default, interface has public ACCESS MODIFIERS.It cannot use any other access modifiers. An Abstract class can have any access modifiers.
No variables and constants can be defined in a class.An abstract class can have variables and constants.

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