Write a program to find second maximum number of four given numbers.

object Demo4
{
def main(args:Array[String])
{
var arr = new ArrayInt

		for(i<-0 to (arr.length-1))
		{
			print("Enter Number = ")
			arr(i) = scala.io.StdIn.readInt()
		}
		
		var temp :Int = 0
		
		for(x<-0 to (arr.length-1))
		{
			for(y<-x+1 to (arr.length-1))
			{
				if(arr(x) < arr(y))
				{
					temp = arr(y)
					arr(y) = arr(x)
					arr(x) = temp
				}
			}
		}
		
		println("Second Highest Number is = "+arr(1))
	}
}