//SINGLETON
- C#
            using NUnit.Framework;
[TestFixture()] publicclass SingletonTest
{     [Test()]     publicvoid ObjectsAreTheSameTest()
    {         DeploymentInfo
firstDeployment = Singleton<DeploymentInfo>.UniqueInstance;
        DeploymentInfo secondDeployment = Singleton<DeploymentInfo>.UniqueInstance;
        Assert.AreSame(firstDeployment, secondDeployment);
    } } //Singleton
Pattern //Generic
Versionpublicclass Singleton<T>
where T : class, new()
{     private Singleton()
    {     }     privateclass SingletonCreator
    {         static SingletonCreator()
        {         }
        //
Private object instantiated with private constructor         staticinternalreadonly T
instance =new T();
    }     publicstatic T
UniqueInstance {         get { return SingletonCreator.instance;
}     } }
        

          
            'SINGLETON
- VB.NET
            Imports NUnit.Framework
<TestFixture()> _ PublicClass SingletonTest
<Test()> _ PublicSub ObjectsAreTheSameTest() Dim firstDeployment As DeploymentInfo = Singleton(Of
DeploymentInfo).UniqueInstance Dim secondDeployment As DeploymentInfo = Singleton(Of
DeploymentInfo).UniqueInstance Assert.AreSame(firstDeployment, secondDeployment) EndSubEndClass'Singleton
Pattern 'Generic
VersionPublicClass Singleton(Of
T As {Class, New}) PrivateSubNew() EndSubPrivateClass SingletonCreator SharedSubNew() EndSub'
Private object instantiated with private constructorFriendSharedReadOnly instance AsNew T() EndClassPublicSharedReadOnlyProperty UniqueInstance() As T GetReturn SingletonCreator.instance EndGetEndPropertyEndClass
        

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