Create README.md

Author: CeyhunAslan

README.md

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+# OOP--Object-Oriented-Programming-_EXPLANATION
+I explained and demonstrated object-oriented programming with examples.
+
+## Class
+In object-oriented programming, a class is an extensible program-code-template for creating objects, providing initial values for state 
+(member variables) and implementations of behavior.
+
+## Constructor
+In class-based object-oriented programming, a constructor (abbreviation: ctor) is a special type of subroutine called to create an object.
+It prepares the new object for use, often accepting arguments that the constructor uses to set required member variables.
+
+## Static Class
+A static class in C# is a class that cannot be instantiated. A static class can only contain static data members including static methods, 
+static constructors, and static properties. In C#, a static class is a class that cannot be instantiated.
+
+## Encapsulation
+In object-oriented programming (OOP), encapsulation refers to the bundling of data with the methods that operate on that data, or the 
+restricting of direct access to some of an object's components
+
+## Inheritance
+Inheritance is the procedure in which one class inherits the attributes and methods of another class. The class whose properties and 
+methods are inherited is known as the Parent class.
+
+## Interface 
+An interface is a programming structure/syntax that allows the computer to enforce certain properties on an object (class).
+
+## Abstract
+Its main goal is to handle complexity by hiding unnecessary details from the user. That enables the user to implement more 
+complex logic on top of the provided abstraction without understanding or even thinking about all the hidden complexity.