Static Classes

The “static” keyword when referring to a class has three effects:

You cannot create an instance of a static class (this even removes the default constructor)
All properties and methods in the class must be static as well.
A static class is a sealed class, meaning it cannot be inherited.

public static class Foo
{
```
//Notice there is no constructor as this cannot be an instance
public static int Counter { get; set; }
public static int GetCount()
{
    return Counter;
}
```
}

public class Program 
{
```
static void Main(string[] args)
{
    Foo.Counter++;
    Console.WriteLine(Foo.GetCount()); //this will print 1
    
    //var foo1 = new Foo(); 
    //this line would break the code as the Foo class does not have a constructor
}
```
}

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