using System;
using System.Collections.Generic;
using System.Text;
public class Point : ICloneable {
public int x, y;
public PointDescription desc = new PointDescription();
public Point() { }
public Point(int x, int y) {
this.x = x; this.y = y;
}
public Point(int x, int y, string petname) {
this.x = x;
this.y = y;
desc.petName = petname;
}
public object Clone() {
Point newPoint = (Point)this.MemberwiseClone();
PointDescription currentDesc = new PointDescription();
currentDesc.petName = this.desc.petName;
newPoint.desc = currentDesc;
return newPoint;
}
public override string ToString() {
return string.Format("X = {0}; Y = {1}; Name = {2};\nID = {3}\n",x, y, desc.petName, desc.pointID);
}
}
public class PointDescription {
public string petName;
public Guid pointID;
public PointDescription() {
this.petName = "No-name";
pointID = Guid.NewGuid();
}
}
class Program {
static void Main(string[] args) {
Point p1 = new Point(50, 50);
Point p2 = p1;
p2.x = 0;
Console.WriteLine(p1);
Console.WriteLine(p2);
Point p3 = new Point(100, 100, "Jane");
Point p4 = (Point)p3.Clone();
Console.WriteLine("p3: {0}", p3);
Console.WriteLine("p4: {0}", p4);
p4.desc.petName = "Mr. X";
p4.x = 9;
Console.WriteLine("p3: {0}", p3);
Console.WriteLine("p4: {0}", p4);
}
}
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