how to declare a variable in to be called in the program class c# code example

Example 1: c# class declaration

//[access modifier] - [class] - [identifier]
public class Customer
{
   // Fields, properties, methods and events go here...
}

Example 2: call class c#

//Declaring an object of type MyClass.
MyClass mc = new MyClass();

//Declaring another object of the same type, assigning it the value of the first object.
MyClass mc2 = mc;