static void Main()
{
Min ob = new Min();
int min;
int a = 10, b = 20;
// Call with 2 values.
min = ob.MinVal(a, b);
Console.WriteLine("Minimum is " + min);
// Call with 3 values.
min = ob.MinVal(a, b, -1);
Console.WriteLine("Minimum is " + min);
// Call with 5 values.
min = ob.MinVal(18, 23, 3, 14, 25);
Console.WriteLine("Minimum is " + min);
// Can call with an int array, too.
int[] args = { 45, 67, 34, 9, 112, 8 };
min = ob.MinVal(args);
Console.WriteLine("Minimum is " + min);
}