Difference between Value Types and Reference Type in C#

Value Types:

• Value types are stored in Stack.
• Value types cannot be inherited from Interface.
• No finalize to clean the resources.
• Value type contains actual value.

ü  Examples: 

             Structures. Enum

Reference Types:

• Reference Types are stored in Queue.
• Reference type can be inherited from Interface as well as Interface.
• Garbage Collector will clean the resources.
• Reference types contain address of the variable.

ü   Example:   

                    Class, Delegates, Array, Interface

Example of Value Type:

 

Class PassingValue

{

            Public void  Multiply(int x)

            {

                X *=x;

                Console.WriteLine(“The Value is…. “, x);

            }

            Public Static void Main()

            {

                        Int  myint = 5;

                        Console.WriteLine(“The Value is…” myint);

                        Multiply(myint);

                        Console.WriteLine(“The Value is….”, myint);

            }

}

Output :

            The Value is…. 5

            The value is….25

            The value is….5

Passing Value by Reference:

Class PassingValueByReference

{

            Public void Multiply (ref int x)

            {

                X *=x;

                Console.WriteLine (“The Value is…. “, x);

            }

            Public Static void Main ()

            {

                        Int  myint = 5;

                        Console.WriteLine(“The Value is…” myint);

                        Multiply(ref myint);

                        Console.WriteLine(“The Value is….”, myint);

            }

}

Output :

            The Value is…. 5

            The value is….25

            The value is….25