Question

Consider we are having a class as show below

public class Hotel
{
    public List<Room> lstRooms;
    public List<Room> objLstRoom = new List<Room>();
}

If I create an object for this Hotel class,

• What would be the difference between these two variables in that object?
• Since list would be empty initially, what would have been stored in it?

Answer 1

lstRooms Will be null, objLstRoom will be an empty List<Room>, no elements.

This means for example, that lstRooms.Add(new Room()) will throw a null reference exception, objLstRoom.Add(new Room) will just work.