fork download
copy 
  1. using System;
  2. using System.IO;
  3.  
  4. class Program
  5. {
  6.     static void Main(string[] args)
  7.     {
  8.         MemoryStream ms = new MemoryStream();
  9.         ms.WriteByte(100);
  10.         ms.WriteByte(100);
  11.         ms.WriteByte(0);
  12.         ms.WriteByte(200);
  13.         ms.WriteByte(200);
  14.         ms.WriteByte(1);
  15.         ms.WriteByte(50);
  16.  
  17.         ms.Seek(0, SeekOrigin.Begin);
  18.         Console.WriteLine(Factory.FromStream(ms));
  19.         Console.WriteLine(Factory.FromStream(ms));
  20.     }
  21. }
  22.  
  23. public struct Point
  24. {
  25.     public int X;
  26.  
  27.     public int Y;
  28.  
  29.     public override string ToString()
  30.     {
  31.         return string.Format("<Point(X={0}, Y={1})>", X, Y);
  32.     }
  33. }
  34.  
  35. public class Shape
  36. {
  37.     protected Point origin;
  38.  
  39.     public Shape(Stream stream)
  40.     {
  41.         origin.X = stream.ReadByte();
  42.         origin.Y = stream.ReadByte();
  43.     }
  44.  
  45.     public Shape(Shape shape)
  46.     {
  47.         origin.X = shape.origin.X;
  48.         origin.Y = shape.origin.Y;
  49.     }
  50.  
  51.     public override string ToString()
  52.     {
  53.         return string.Format("<Shape(origin={0})>", origin);
  54.     }
  55. }
  56.  
  57. public class Circle : Shape
  58. {
  59.     private double r;
  60.  
  61.     public Circle(Shape shape, int r) : base(shape)
  62.     {
  63.         this.r = r;
  64.     }
  65.  
  66.     public override string ToString()
  67.     {
  68.         return string.Format("<Circle(origin={0}, r={1})>", origin, r);
  69.     }
  70. }
  71.  
  72. public class Factory
  73. {
  74.     public static Shape FromStream(Stream stream)
  75.     {
  76.         Shape shape = new Shape(stream);
  77.         switch (stream.ReadByte())
  78.         {
  79.             case 0:
  80.                 return shape;
  81.             case 1:
  82.                 return new Circle(shape, stream.ReadByte());
  83.             default:
  84.                 throw new Exception();
  85.         }
  86.     }
  87. }
  88.  
Success #stdin #stdout 0s 29664KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
<Shape(origin=<Point(X=100, Y=100)>)>
<Circle(origin=<Point(X=200, Y=200)>, r=50)>
https://ideone.com/z8FM2j
language:
C# (gmcs 5.20.1)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!