oo-70-245-1

oo-70-245-1 Commit Details


Date:2015-11-02 20:44:30 (9 years 5 months ago)
Author:Natalie Adams
Branch:master
Commit:7268bfc02009f62f77f8b3d30d546aaf3a2822d4
Parents: ca71467ff7e4d77b7e84f379e038b474f5bd7b71
Message:adding flyweight example
Changes:

File differences

Design Pattern Examples/Flyweight/Program.cs
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using System;␊
using System.Collections.Generic;␊
using System.Linq;␊
using System.Text;␊
␊
namespace flyweightexample␊
{␊
    public interface IShape␊
    {␊
        void Print();␊
    }␊
␊
    public class Rectangle : IShape␊
    {␊
        public void Print()␊
        {␊
            Console.WriteLine("Printing Rectangle");␊
        }␊
    }␊
␊
    public class Cricle : IShape␊
    {␊
        public void Print()␊
        {␊
            Console.WriteLine("Printing Circle");␊
        }␊
    }␊
␊
    public class ShapeObjectFactory␊
    {␊
        Dictionary<string, IShape> shapes = new Dictionary<string, IShape>();␊
␊
        public int TotalObjectsCreated()␊
        {␊
            return shapes.Count;␊
        }␊
␊
        public IShape GetShape(string ShapeName)␊
        {␊
            IShape shape = null;␊
            if (shapes.ContainsKey(ShapeName))␊
            {␊
                shape = shapes[ShapeName];␊
            }␊
            else␊
            {␊
                switch (ShapeName)␊
                {␊
                    case "Rectangle":␊
                        shape = new Rectangle();␊
                        shapes.Add("Rectangle", shape);␊
                        break;␊
                    case "Circle":␊
                        shape = new Cricle();␊
                        shapes.Add("Circle", shape);␊
                        break;␊
                    default:␊
                        throw new Exception("Factory cannot create the object specified");␊
                }␊
            }␊
            return shape;␊
        }␊
    }␊
    class Program␊
    {␊
        static void Main(string[] args)␊
        {␊
            ShapeObjectFactory sof = new ShapeObjectFactory();␊
␊
            IShape shape = sof.GetShape("Rectangle");␊
            shape.Print();␊
            shape = sof.GetShape("Rectangle");␊
            shape.Print();␊
            shape = sof.GetShape("Circle");␊
            shape.Print();␊
            shape = sof.GetShape("Circle");␊
            shape.Print();␊
␊
            Console.WriteLine("\nTotal Number of objects created = {0}", sof.TotalObjectsCreated());␊
        }␊
    }␊
}␊

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