Protected class-level variable in C#.NET

Define protected class-level variable in C#.NET.

It can be inherited by the classes in the same namespace.

For a protected member, access is limited within the class definition and any class that inherits from the class.

class vehicle {
    protected int i = 0;
    public void vehicleinterior()
    {
        // you can access all public, protected and private members.
        }
}

class car : vehicle
{
    public void carinterior()
    {
         i = 1; // it's legal because it's defined as protected in vehicle class.
         // here you can't access the private members of the vehicle class.
    }
}