using System;

namespace Example42
{
	class Point
	{
		private double x;
		private double y;

		public Point(double x, double y)
		{
			this.x = x;
			this.y = y;
		}

		public override string ToString()
		{
			return String.Format("({0:F5},{1:F5})", x, y);
		}

		public double X
		{
			get { return x; }
			set { x = value; }
		}

		public double Y
		{
			get { return y; }
			set { y = value; }
		}
	}
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		public static void printPoints(Point[] a)
		{
			/*for (int i = 0; i < a.Length; i++)
			{
				Console.WriteLine(a[i].ToString());
			}*/
			foreach (Point pt in a)
			{
				Console.WriteLine(pt.ToString());
			}
		}

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Point[] pts = new Point[10];

			Random randNumber = new Random();

			for (int i = 0; i < pts.Length; i++)
			{
				pts[i] = new Point(10.0 * randNumber.NextDouble(), 
					100.0 * randNumber.NextDouble());
			}

			printPoints(pts);

			for (int i = 0; i < pts.Length; i++)
			{
				pts[i].X = i;
				pts[i].Y = i+1;
			}

			printPoints(pts);

			foreach (Point pt in pts)
			{
				pt.X = 10;
				pt.Y = 100;
			}

			printPoints(pts);

			foreach (Point pt in pts)
			{
				pt.X = randNumber.NextDouble();
				pt.Y = randNumber.NextDouble();
			}

			printPoints(pts);
		}
	}
}