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Bogdan Hladiuc
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Design patterns: Factory, Builder, Singleton
1 parent a6afaa9 commit 21ebe47

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12 files changed

+554
-3
lines changed

12 files changed

+554
-3
lines changed

‎Design Patterns/Builder/Builder.cs

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#nullable disable warnings
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namespace DesignPatterns.Builder;
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public class Builder {
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internal class Burger {
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string Bun { get; set; }
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string Patty { get; set; }
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string Cheese { get; set; }
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public void SetBuns(string bun) {
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Bun = bun;
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}
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public void SetPatty(string patty) {
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Patty = patty;
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}
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public void SetCheese(string cheese) {
20+
Cheese = cheese;
21+
}
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public void Print() {
24+
Console.WriteLine($"[{Bun}, {Patty}, {Cheese}]");
25+
}
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}
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internal class BurgerBuilder {
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Burger Burger { get; set; }
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public BurgerBuilder() {
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Burger = new Burger();
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}
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public BurgerBuilder AddBuns(string bunStyle) {
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Burger.SetBuns(bunStyle);
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return this;
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}
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public BurgerBuilder AddPatty(string pattyStyle) {
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Burger.SetPatty(pattyStyle);
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return this;
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}
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public BurgerBuilder AddCheese(string cheeseStyle) {
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Burger.SetCheese(cheeseStyle);
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return this;
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}
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public Burger Build() {
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return Burger;
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}
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}
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public static void Run() {
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var burger = new BurgerBuilder()
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.AddBuns("sesame")
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.AddPatty("beef-patty")
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.AddCheese("cedar")
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.Build();
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burger.Print();
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}
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}

‎Design Patterns/Builder/Builder.csproj

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@@ -0,0 +1,9 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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</Project>

‎Design Patterns/Factory/Factory.cs

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#nullable disable warnings
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using Library;
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namespace DesignPatterns.Factory;
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public class Factory {
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internal class Burger {
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string[] Ingredients { get; set; }
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public Burger(string[] ingredients) {
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Ingredients = ingredients;
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}
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public void Print() {
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AssortedMethods.PrintStringArray(Ingredients);
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}
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}
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internal class BurgerFactory {
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public Burger CreateCheeseBurger() {
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var ingredients = new string[] { "bun", "cheese", "beef-patty" };
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return new Burger(ingredients);
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}
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public Burger CreateDeluxeCheeseBurger() {
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var ingredients = new string[] { "bun", "tomatoes", "lettuce", "cheese", "beef-patty" };
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return new Burger(ingredients);
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}
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public Burger CreateVeganBurger() {
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var ingredients = new string[] { "bun", "special-sauce", "veggie-patty" };
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return new Burger(ingredients);
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}
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}
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public static void Run() {
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var burgerFactory = new BurgerFactory();
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burgerFactory.CreateCheeseBurger().Print();
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burgerFactory.CreateDeluxeCheeseBurger().Print();
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burgerFactory.CreateVeganBurger().Print();
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}
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}

‎Design Patterns/Factory/Factory.csproj

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@@ -0,0 +1,13 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<ItemGroup>
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<ProjectReference Include="..\..\Library\Library.csproj" />
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</ItemGroup>
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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</Project>

‎Design Patterns/Singleton/Singleton.cs

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#nullable disable warnings
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namespace DesignPatterns.Singleton;
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public class Singleton {
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sealed class SingletonInstance {
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private static readonly SingletonInstance instance = new SingletonInstance();
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public bool IsLoggedIn { get; set; }
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private SingletonInstance() {
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IsLoggedIn = false;
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}
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public static SingletonInstance Instance {
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get {
15+
return instance;
16+
}
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}
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}
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public static void Run() {
21+
var singleton1 = SingletonInstance.Instance;
22+
Console.WriteLine($"singleton1.IsLoggedIn = {singleton1.IsLoggedIn}");
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var singleton2 = SingletonInstance.Instance;
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singleton2.IsLoggedIn = true;
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Console.WriteLine($"singleton1.IsLoggedIn = {singleton1.IsLoggedIn}");
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Console.WriteLine($"singleton2.IsLoggedIn = {singleton2.IsLoggedIn}");
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}
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}

‎Design Patterns/Singleton/Singleton.csproj

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@@ -0,0 +1,9 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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9+
</Project>

‎LeetcodeNew.sln

Lines changed: 64 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -129,6 +129,18 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Day_21_Positions_Are_Safe",
129129
EndProject
130130
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Q91_Decode_Ways", "Q91_Decode_Ways\Q91_Decode_Ways.csproj", "{58453981-B2A6-49F0-9E56-AAFB5532C244}"
131131
EndProject
132+
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Misc", "Misc", "{0F05CDCB-91D8-45D5-B09E-1FE20A5D322E}"
133+
EndProject
134+
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Find_Any_One_Duplicate", "Misc\Find_Any_One_Duplicate\Find_Any_One_Duplicate.csproj", "{9190FE79-8571-492D-9EA1-D6D998521DB9}"
135+
EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Design Patterns", "Design Patterns", "{A059A18B-8F12-4AFA-A873-160FCE87B339}"
137+
EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Factory", "Design Patterns\Factory\Factory.csproj", "{6329D6FC-7BCD-477C-8F69-8C84697EC35D}"
139+
EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Builder", "Design Patterns\Builder\Builder.csproj", "{04B9930E-022A-4425-BFC8-5E4434E94024}"
141+
EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Singleton", "Design Patterns\Singleton\Singleton.csproj", "{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}"
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EndProject
132144
Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
134146
Debug|Any CPU = Debug|Any CPU
@@ -874,6 +886,54 @@ Global
874886
{58453981-B2A6-49F0-9E56-AAFB5532C244}.Release|x64.Build.0 = Release|Any CPU
875887
{58453981-B2A6-49F0-9E56-AAFB5532C244}.Release|x86.ActiveCfg = Release|Any CPU
876888
{58453981-B2A6-49F0-9E56-AAFB5532C244}.Release|x86.Build.0 = Release|Any CPU
889+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
890+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|Any CPU.Build.0 = Debug|Any CPU
891+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|x64.ActiveCfg = Debug|Any CPU
892+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|x64.Build.0 = Debug|Any CPU
893+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|x86.ActiveCfg = Debug|Any CPU
894+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Debug|x86.Build.0 = Debug|Any CPU
895+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|Any CPU.ActiveCfg = Release|Any CPU
896+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|Any CPU.Build.0 = Release|Any CPU
897+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|x64.ActiveCfg = Release|Any CPU
898+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|x64.Build.0 = Release|Any CPU
899+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|x86.ActiveCfg = Release|Any CPU
900+
{9190FE79-8571-492D-9EA1-D6D998521DB9}.Release|x86.Build.0 = Release|Any CPU
901+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
902+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|Any CPU.Build.0 = Debug|Any CPU
903+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|x64.ActiveCfg = Debug|Any CPU
904+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|x64.Build.0 = Debug|Any CPU
905+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|x86.ActiveCfg = Debug|Any CPU
906+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Debug|x86.Build.0 = Debug|Any CPU
907+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|Any CPU.ActiveCfg = Release|Any CPU
908+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|Any CPU.Build.0 = Release|Any CPU
909+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|x64.ActiveCfg = Release|Any CPU
910+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|x64.Build.0 = Release|Any CPU
911+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|x86.ActiveCfg = Release|Any CPU
912+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D}.Release|x86.Build.0 = Release|Any CPU
913+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
914+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|Any CPU.Build.0 = Debug|Any CPU
915+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|x64.ActiveCfg = Debug|Any CPU
916+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|x64.Build.0 = Debug|Any CPU
917+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|x86.ActiveCfg = Debug|Any CPU
918+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Debug|x86.Build.0 = Debug|Any CPU
919+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|Any CPU.ActiveCfg = Release|Any CPU
920+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|Any CPU.Build.0 = Release|Any CPU
921+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|x64.ActiveCfg = Release|Any CPU
922+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|x64.Build.0 = Release|Any CPU
923+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|x86.ActiveCfg = Release|Any CPU
924+
{04B9930E-022A-4425-BFC8-5E4434E94024}.Release|x86.Build.0 = Release|Any CPU
925+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
926+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|Any CPU.Build.0 = Debug|Any CPU
927+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|x64.ActiveCfg = Debug|Any CPU
928+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|x64.Build.0 = Debug|Any CPU
929+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|x86.ActiveCfg = Debug|Any CPU
930+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Debug|x86.Build.0 = Debug|Any CPU
931+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|Any CPU.ActiveCfg = Release|Any CPU
932+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|Any CPU.Build.0 = Release|Any CPU
933+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|x64.ActiveCfg = Release|Any CPU
934+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|x64.Build.0 = Release|Any CPU
935+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|x86.ActiveCfg = Release|Any CPU
936+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8}.Release|x86.Build.0 = Release|Any CPU
877937
EndGlobalSection
878938
GlobalSection(NestedProjects) = preSolution
879939
{45EB27A3-9FBB-48ED-8C89-E0F074C02E8C} = {71C7D88B-6D5D-4E25-A275-869603700831}
@@ -898,5 +958,9 @@ Global
898958
{A60BC75A-CFB2-4DD0-ABB6-996B1A7A365E} = {45EB27A3-9FBB-48ED-8C89-E0F074C02E8C}
899959
{59CEF2C6-5BC8-4F83-ABA7-50C19533AD40} = {45EB27A3-9FBB-48ED-8C89-E0F074C02E8C}
900960
{5CD502FA-339D-4637-A1BF-BC5B32DCAD38} = {45EB27A3-9FBB-48ED-8C89-E0F074C02E8C}
961+
{9190FE79-8571-492D-9EA1-D6D998521DB9} = {0F05CDCB-91D8-45D5-B09E-1FE20A5D322E}
962+
{6329D6FC-7BCD-477C-8F69-8C84697EC35D} = {A059A18B-8F12-4AFA-A873-160FCE87B339}
963+
{04B9930E-022A-4425-BFC8-5E4434E94024} = {A059A18B-8F12-4AFA-A873-160FCE87B339}
964+
{22DF60F2-E5FE-4A35-89C3-5EB577ABEAD8} = {A059A18B-8F12-4AFA-A873-160FCE87B339}
901965
EndGlobalSection
902966
EndGlobal

‎Run/Program.cs

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@@ -38,7 +38,7 @@ static void Main(string[] args) {
3838
// Q56_Merge_Intervals.Q56_Merge_Intervals.Run();
3939
// Q65_Valid_Number.Q65_Valid_Number.Run();
4040
// Q71_Simplify_Path.Q71_Simplify_Path.Run();
41-
Q91_Decode_Ways.DecodeWays.Run();
41+
// Q91_Decode_Ways.DecodeWays.Run();
4242
// Q152_Maximum_Product_Subarray.Q152_Maximum_Product_Subarray.Run();
4343
// Q173_Binary_Search_Tree_Iterator.Q173_Binary_Search_Tree_Iterator.Run();
4444
// Q189_Rotate_Array.Q189_Rotate_Array.Run();
@@ -70,6 +70,11 @@ static void Main(string[] args) {
7070

7171
// Misc
7272
// Counting_Sort.Counting_Sort.Run();
73+
74+
// Design Patterns
75+
// DesignPatterns.Factory.Factory.Run();
76+
// DesignPatterns.Builder.Builder.Run();
77+
DesignPatterns.Singleton.Singleton.Run();
7378
}
7479
}
7580
}

‎Run/Run.csproj

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@@ -62,6 +62,10 @@
6262
<ProjectReference Include="..\Formation\21_Days_Challenge\Day_20_Set_Matrix_To_Zero\Day_20_Set_Matrix_To_Zero.csproj" />
6363
<ProjectReference Include="..\Formation\21_Days_Challenge\Day_21_Positions_Are_Safe\Day_21_Positions_Are_Safe.csproj" />
6464
<ProjectReference Include="..\Q91_Decode_Ways\Q91_Decode_Ways.csproj" />
65+
<ProjectReference Include="..\Misc\Find_Any_One_Duplicate\Find_Any_One_Duplicate.csproj" />
66+
<ProjectReference Include="..\Design Patterns\Factory\Factory.csproj" />
67+
<ProjectReference Include="..\Design Patterns\Builder\Builder.csproj" />
68+
<ProjectReference Include="..\Design Patterns\Singleton\Singleton.csproj" />
6569
</ItemGroup>
6670

6771
<PropertyGroup>

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