What is difference between Abstract and Interface

Question

OOP

Answer 1

Both are contracts to define methods definitions, event definitions and properties. So basically how the outside world should approach the software module

A abstract class can have a implementation
A interface cannot

A abstract class is a class, you only can inherited from one base class
A interface is not a class, you can inherit from multiple interfaces.

https://www.codeproject.com/Articles/11155/Abstract-Class-versus-Interface

Answer 2

First I would say No, but i did do a lot ado.net with databases and sql

Answer 3

Okay because now i am now focused it MVC and. Net Core, which are the latest technologies

Answer 4

Thanks bro, Are you familiar with Entity Framework?