Stack Overflow for Teams A private, secure home for your team’s questions and answers. M9 1a8 8 0 1 0 0 16A8 8 0 0 0 9 1zm. Like define an interface, and add a class to inherit the interface. The new new york dfs bitcoin used like this is member hiding.
I have never seen it used in conjunction with the virtual keyword, mind you. The new keyword used this way allows a type to hide the members of base types, but only if you are using a variable of the type itself. Personally, I wouldn’t ever do this. As for why the output is printer one calling IPrinter.
When used as a modifier, the new keyword explicitly hides a member inherited from a base class. This means that the method does not override the virtual base class method, but it still takes precedence when called on an instance of the derived class. In other words, the new method only affects a variable of the derived class, not the base class. The virtual keyword is used to modify a method, property, indexer, or event declaration and allow for it to be overridden in a derived class.
This means that the method can be overriden in a derived class. When you call a virtual method on a base class variable which holds an instance of the derived class that has overridden the virtual method, the derived class implementation is called. This is the opposite of the behaviour of the new keyword. You use this when you need to provide your own implementation for a method that cannot be overridden. Print is not a virtual method, it cannot be overridden.
Instead, the new keyword is used to create a identical method signature that hides the original method. The new method will be used instead. Calling it by the interface calls the original method. Mind you, that the method was never removed or replaced so the original implementation still exists by accessing the interface directly. Not the answer you’re looking for? What’s the point of using new on virtual methods?