# C# program to demonstrate the use of Round() method of Math class

Here, we are going to demonstrate use of Round() method of Math class in C#.Net.
Submitted by Nidhi, on April 15, 2021

Here, we will learn about the Round() method of Math class. This method is used to round off floating-point numbers to the nearest integer value. This method is overloaded 8 times.

Syntax:

```    Decimal     Math.Round(Decimal)
Double      Math.Round(Double)
Decimal     Math.Round(Decimal, Int32)
Decimal     Math.Round(Decimal, MidpointRounding)
Double      Math.Round(Double, Int32)
Double      Math.Round(Double, MidpointRounding)
Decimal     Math.Round(Decimal, Int32, MidpointRounding)
Double      Math.Round(Double, Int32, MidpointRounding)
```

Parameter:

Here we passed double and decimal values to round off given value according to the overloaded method.

Return value:

This method returns double or decimal values according to the overloaded method.

Program:

The source code to demonstrate the use of Round() method of Math class is given below. The given program is compiled and executed successfully.

```using System;
class Sample
{
//Entry point of Program
static public void Main()
{
double val = 0.0;
decimal decVal = 0.0M;

Console.WriteLine("Demonstration of Round Method: ");
val = Math.Round(2.4);
Console.WriteLine("Value : "+val);

val = Math.Round(2.5);
Console.WriteLine("Value : " + val);

val = Math.Round(2.6);
Console.WriteLine("Value : " + val);

val = Math.Round(2.4567,2);
Console.WriteLine("Value : " + val);

val = Math.Round(2.4567, 3);
Console.WriteLine("Value : " + val);

decVal = Math.Round(2.4567M, 2);
Console.WriteLine("Decimal Value : " + decVal);

decVal = Math.Round(2.4567M,MidpointRounding.AwayFromZero);
Console.WriteLine("Decimal Value : " + decVal);
}
}
```

Output:

```Demonstration of Round Method:
Value : 2
Value : 2
Value : 3
Value : 2.46
Value : 2.457
Decimal Value : 2.46
Decimal Value : 2
Press any key to continue . . .
```

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