Builder Pattern Example

Author: anupavanm

BuilderPattern/BuilderPattern.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

BuilderPattern/Program.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Text;
+
+namespace BuilderPattern
+{
+  class Program
+  {
+    class Burger
+    {
+      private int mSize;
+      private bool mCheese;
+      private bool mPepperoni;
+      private bool mLettuce;
+      private bool mTomato;
+
+      public Burger(BurgerBuilder builder)
+      {
+        this.mSize = builder.Size;
+        this.mCheese = builder.Cheese;
+        this.mPepperoni = builder.Pepperoni;
+        this.mLettuce = builder.Lettuce;
+        this.mTomato = builder.Tomato;
+      }
+
+      public string GetDescription()
+      {
+        var sb = new StringBuilder();
+        sb.Append(String.Format("This is {0} inch Burger. ", this.mSize));
+        return sb.ToString();
+      }
+    }
+
+    class BurgerBuilder {
+      public int Size;
+      public bool Cheese;
+      public bool Pepperoni;
+      public bool Lettuce;
+      public bool Tomato;
+
+      public BurgerBuilder(int size)
+      {
+        this.Size = size;
+      }
+
+      public BurgerBuilder AddCheese()
+      {
+        this.Cheese = true;
+        return this;
+      }
+
+      public BurgerBuilder AddPepperoni()
+      {
+        this.Pepperoni = true;
+        return this;
+      }
+
+      public BurgerBuilder AddLettuce()
+      {
+        this.Lettuce = true;
+        return this;
+      }
+
+      public BurgerBuilder AddTomato()
+      {
+        this.Tomato = true;
+        return this;
+      }
+
+      public Burger Build()
+      {
+        return new Burger(this);
+      }
+    }
+
+    static void Main(string[] args)
+    {
+      var burger = new BurgerBuilder(4).AddCheese()
+                                        .AddPepperoni()
+                                        .AddLettuce()
+                                        .AddTomato()
+                                        .Build();
+      Console.WriteLine(burger.GetDescription());
+      Console.ReadLine();
+    }
+  }
+}

DesignPatterns.sln

@@ -9,6 +9,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FactoryMethodPattern", "Fac
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractFactoryPattern", "AbstractFactoryPattern\AbstractFactoryPattern.csproj", "{081F04C5-CF9E-4997-B04E-5F9FDCCEE90D}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BuilderPattern", "BuilderPattern\BuilderPattern.csproj", "{A2804858-D1F9-4849-8C7E-1AB4DA7F979E}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,6 +29,10 @@ Global
 		{081F04C5-CF9E-4997-B04E-5F9FDCCEE90D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{081F04C5-CF9E-4997-B04E-5F9FDCCEE90D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{081F04C5-CF9E-4997-B04E-5F9FDCCEE90D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A2804858-D1F9-4849-8C7E-1AB4DA7F979E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A2804858-D1F9-4849-8C7E-1AB4DA7F979E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A2804858-D1F9-4849-8C7E-1AB4DA7F979E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A2804858-D1F9-4849-8C7E-1AB4DA7F979E}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE