Classes and Objects In C#

Lets take a example of a Car . It has different attributes like color,maximum speed,no of gears on with a built in audio player  and so on.

public class Car

{

}

Declaration Of Class: 
<access specifier><keyword:class> <class name: Car>
public class car

if access identifier is not explicitly mentioned a class has internal access identifier as default while methods and properties have private access identifier.

Fields :  field is private to the class and stores the actual data.

Properties : Properties are exposed contract which uses the underlying fields.
                  Properties are also called accessors as they offer a way to get and set a field in the class.
                  Properties can be read-only,write-only or both by declaring get{},set{} or both.

Object :
Object is an instance of a class which is created at run time. It is a memory  allocation according to the class of which it is an instance of  . It is used to access properties and methods in a class.

Initializing an object
An object is initialized by using the keyword new.

Car c=new Car();
 here c is an object of type car.
if we split the above initialization in two lines
Car c ; // it is a declaration which states that c is a variable of type class c;
c=new Car();// now c is an object of class Car

and we can access the properties and methods of the class
c.Color=red;  //assigning value to the property of the object
string color=c.Color; //getting the value of the property from the object
c.PlayAudio(); //invoking method