Class in C#

When you define a class, you define a blueprint for a data type. This doesn't actually define any data, but it does define what the class name means, that is, what an object of the class will consist of and what operations can be performed on such an object. Objects are instances of a class. The methods and variables that constitute a class are called members of the class.
Class Definition

A class definition starts with the keyword class followed by the class name; and the class body, enclosed by a pair of curly braces. Following is the general form of a class definition:

<access specifier> class class_name 

{ 

    // member variables

     <access specifier>  <data type> variable1; 

    <access specifier> <data type> variable2;

    <access specifier> <data type> variableN; 

    

    // member methods 

    <access specifier> <return type> method1(parameter_list) 

    {

      // method body 

    } 

    <access specifier> <return type> method2(parameter_list) 

    { 

    // method body 

    } ... 

    <access specifier> <return type> methodN(parameter_list) 

    { 

    // method body 

    } 

}