Generic in C#

C# program that describes generic class

using System;

class Test<T>
{
    T _value;

    public Test(T t)
    {
 // The field has the same type as the parameter.
 this._value = t;
    }

    public void Write()
    {
 Console.WriteLine(this._value);
    }
}

class Program
{
    static void Main()
    {
 // Use the generic type Test with an int type parameter.
 Test<int> test1 = new Test<int>(5);
 // Call the Write method.
 test1.Write();

 // Use the generic type Test with a string type parameter.
 Test<string> test2 = new Test<string>("cat");
 test2.Write();
    }
}

Output

5
cat