public static void Main()
Console.WriteLine("Checking Cartesian Quadrant");
Console.WriteLine("********************");
Console.Write("Coordinate-X :");
double X = Convert.ToDouble(Console.ReadLine());
Console.Write("Coordinate-Y :");
double Y = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("(X,Y)=({0},{1})",X,Y);
Console.WriteLine("Category of Quadrant : Quadrant 1");
Console.WriteLine("Category of Quadrant : Quadrant 2");
Console.WriteLine("Category of Quadrant : Quadrant 3");
Console.WriteLine("Category of Quadrant : Quadrant 4");
else if (((X>0) || (X<0)) && (Y==0))
Console.WriteLine("Category of Quadrant : Coodinate lies on X-axis");
else if ((X==0) && ((Y>0 || (Y<0)))
Console.WriteLine("Category of Quadrant : Coodinate lies on Y-axis");
else if ((X==0) && (Y==0))
Console.WriteLine("Category of Quadrant : Origin of Coordinate");