Static Class

A static class is basically the same as a non-static class, but there is one difference: a static class cannot be instantiated. In other words, you cannot use the new keyword to create a variable of the class type. Because there is no instance variable, you access the members of a static class by using the class name itself. 

A static class is never instantiated. The static keyword on a class enforces that a type not be created with a constructor. In the static class, we access members directly on the type. This eliminates misuse of the class.

Note:A static class cannot have non-static members. All methods, fields and properties in it must also be static.

 

static class StaticClass

    {

         //StaticClass() { }///Error- Static classes cannot have instance constructors

      

        ///

        /// Error- 'Display': cannot declare instance members in a static class

        ///

        //public void Display()

        //{

        //    Console.WriteLine("Display");

        //}

        public static void StaticDisplay()

        {

            Console.WriteLine("Static Display");

        }

    }

Call as StaticClass.StaticDisplay();

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