Parameters in C# code example

Set of arguments that must be provided for that method are parameters 

  Different ways of passing parameters in C# 

               Pass by Value (Value Of Parameter Passed)
      Pass by ref  (Memory Location or Ref of Parameter is passed)
      Out (  variable is assigned a value before returning from a method)
      Params (  any number of parameters of a particular type)

See the below code example 

    

using System;
using System.Text;
class Test
{
    static void DisplayUsingValue(int p) { ++p; }
    static void DisplayUsingRef(ref int p) { ++p; }
    static void DisplayUsingOut(int p , out int y)
    {

        y=p+2;
    }
    static int Add(params int[] iarr)
    {
        int sum = 0;
        foreach (int i in iarr)
            sum += i;
        return sum;
    }



    static void Main()
    {
        int x = 8;
        DisplayUsingValue(x); // make a copy of the value-type x
        Console.WriteLine("output From Pass By Value Method Demo  ");
        Console.WriteLine(x); // x will still be 8

        DisplayUsingRef(ref x);
        Console.WriteLine("output From Pass By Ref Method Demo  ");
        Console.WriteLine(x);

        int a;
        DisplayUsingOut(x, out a);
        Console.WriteLine("output From out parameter  Demo  ");
        Console.WriteLine(a);

        int result = Add(1, 2,7);
        Console.WriteLine("output From params[]  Demo  ");
        Console.WriteLine(result);

    }
}

And See the output 

"output From Pass By Value Method Demo

8

output From Pass By Ref Method Demo

9

output From out parameter  Demo 

11

output From params[]  Demo 

10