Article 5:-How Object is Created?

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Written By:-Isha Malhotra

Email:-malhotra.isha3388@gmail.com

How Object is Created?

Or

Why classes are called Reference Type

As we know that class is a user defined data type.

For creating the object of any class we write the following code:-

Class_Name  Object_Name=new Class_Name();

Suppose the class name is calculator. Then we create the object like that

Calculator cal = new calculator();

This declaration done in two steps:-

ü  First it declares the variable cal of the class type calculator. This variable does not define any object. It is simply a reference variable.

                                  Calculator cal; //Reference variable of type class Calculater

ü  Second this declaration creates an actual physical copy of object and assign its(object) reference to cal which is a reference variable. It is done by using  the new operator.

The new operator dynamically allocates the memory for an object and return refrence to the cal (reference variable).

Cal=new calculator();

This is the reason in c# all class object allocates memory dynamically and Classes called as Reference Type. Now cal is linked with an object.