Builder

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace Builder{ class Program { static void Main(string[] args) { VehicleBuilder builder; // Create shop with vehicle builders Shop shop = new Shop(); // Construct and display vehicles builder = new ScooterBuilder(); shop.Construct(builder); builder.Vehicle.Show(); builder = new CarBuilder(); shop.Construct(builder); builder.Vehicle.Show(); builder = new MotorCycleBuilder(); shop.Construct(builder); builder.Vehicle.Show(); // Wait for user Console.ReadKey(); } } /// <summary> /// The 'Director' class /// </summary> class Shop { // Builder uses a complex series of steps public void Construct(VehicleBuilder vehicleBuilder) { vehicleBuilder.BuildFrame(); vehicleBuilder.BuildEngine(); vehicleBuilder.BuildWheels(); vehicleBuilder.BuildDoors(); } } /// <summary> /// The 'Builder' abstract class /// </summary> abstract class VehicleBuilder { protected Vehicle vehicle; // Gets vehicle instance public Vehicle Vehicle { get { return vehicle; } } // Abstract build methods public abstract void BuildFrame(); public abstract void BuildEngine(); public abstract void BuildWheels(); public abstract void BuildDoors(); } /// <summary> /// The 'ConcreteBuilder1' class /// </summary> class MotorCycleBuilder : VehicleBuilder { public MotorCycleBuilder() { vehicle = new Vehicle("MotorCycle"); } public override void BuildFrame() { vehicle["frame"] = "MotorCycle Frame"; } public override void BuildEngine() { vehicle["engine"] = "500 cc"; } public override void BuildWheels() { vehicle["wheels"] = "2"; } public override void BuildDoors() { vehicle["doors"] = "0"; } } /// <summary> /// The 'ConcreteBuilder2' class /// </summary> class CarBuilder : VehicleBuilder { public CarBuilder() { vehicle = new Vehicle("Car"); } public override void BuildFrame() { vehicle["frame"] = "Car Frame"; } public override void BuildEngine() { vehicle["engine"] = "2500 cc"; } public override void BuildWheels() { vehicle["wheels"] = "4"; } public override void BuildDoors() { vehicle["doors"] = "4"; } } /// <summary> /// The 'ConcreteBuilder3' class /// </summary> class ScooterBuilder : VehicleBuilder { public ScooterBuilder() { vehicle = new Vehicle("Scooter"); } public override void BuildFrame() { vehicle["frame"] = "Scooter Frame"; } public override void BuildEngine() { vehicle["engine"] = "50 cc"; } public override void BuildWheels() { vehicle["wheels"] = "2"; } public override void BuildDoors() { vehicle["doors"] = "0"; } } /// <summary> /// The 'Product' class /// </summary> class Vehicle { private string _vehicleType; private Dictionary<string, string> _parts = new Dictionary<string, string>(); // Constructor public Vehicle(string vehicleType) { this._vehicleType = vehicleType; } // Indexer public string this[string key] { get { return _parts[key]; } set { _parts[key] = value; } } public void Show() { Console.WriteLine("/n---------------------------"); Console.WriteLine("Vehicle Type: {0}", _vehicleType); Console.WriteLine(" Frame : {0}", _parts["frame"]); Console.WriteLine(" Engine : {0}", _parts["engine"]); Console.WriteLine(" #Wheels: {0}", _parts["wheels"]); Console.WriteLine(" #Doors : {0}", _parts["doors"]); } }}