Abstraction vs interface?

Question

Accepted Answer

Abstraction is a concept of hiding implementation details while interface is a contract that defines the behavior of a class.

Accepted Answer

only1 abstract class can be extended whereas multiple interfaces can be implemented.

abstract class can have constructors whereas interface cant

abstraction doesn't support multiple inheritance whereas interface supports.

Accepted Answer

Abstraction-is a non abstract class.

Used static and non static type of data.

Extend keyword is used to inherited.

Only one abstract class is inherited.

Using abstraction we cannot achieve the multiple inheritance.

Abstraction doesn't have constructor.

All data member access to the abstract.

Inheritance- is only abstract class closely related to the class.

Used static and final type of data.

Implement keyword is used to inherited.

Many no of interface is used inherited.

Using interface we can achieve the multiple inheritance.

Interface having constructor.

Only public and protected data member access.

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