Write a program to calculate factorial of a number.

object Demo2
{
def main(args:Array[String])
{
print("Enter the Number to Calculate Factorial = ")
var n = scala.io.StdIn.readInt()

		var sum :Int = 1;
		
		for(i<-1 to n)
		{
			sum = sum * i
		}
		
		println("Factorial of "+n+" is "+sum)
	}
}