Value Parameter Example In C Sharp

This program descirbe the concept of pass by value  (Value Parameter in C#)
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using System;

class ValueParameter
{
static void Main()
{
int a = 10;
Console.WriteLine("Value of a before calling method is " + a);
Console.WriteLine("--------------------");
ChangeValueMethod(a);
Console.WriteLine("--------------------");
Console.WriteLine("Value of a after calling method is " + a);
        }
static void ChangeValueMethod(int a)
{
a += 10;
Console.WriteLine("Value of a is " + a);
}
}

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Note : - While we make change in the variable value of the formal parameter they will not reflect changes to the variable value of the actual parameter.

Actual parameter is 

int a;

ChangeValueMethod(a);

Formal parmeter is 

static void ChangeValueMethod(int a)

{

a += 10;

        }

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