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Start your free trialdouglas gray
888 PointsIf a subclass inherits all of the methods and attributes of it's parent class, why is it necessary to rewrite them ?
In this example, Jeremy defines a TreehouseDefenseException class and an OutOfBounds subclass. If the subclass inherits from it's parent class why must we rewrite the constructor methods in exactly the same way, except for exchanging "TreehouseDefenseException" for "OutOFBounds"
1 Answer
Steven Parker
231,198 PointsConstructor methods are not inherited.
They can't be, because the constructor method name must be the same as the class name.
They can, however, be called implicitly, but not if you need to pass them parameters. That's what base is all about.
nfs
35,526 Pointsnfs
35,526 PointsSo can I put it like this: When we pass no arguments in the method, it's a constructor, and by default, a constructor inherits all the methods from the base class. But when we need to pass in arguments in the constructor, it doesn't remain a constructor anymore, it becomes a method. And to make this constructor inherit the functionality of the base class we need to use the base keyword. Am I getting it right?
So is the example right?
Steven Parker
231,198 PointsSteven Parker
231,198 PointsNot quite:
Ans your example doesn't make sense because it's calling the base but it doesn't have one. Perhaps you meant to declare it like this:
class Something : OtherThing
nfs
35,526 Pointsnfs
35,526 PointsYes, Steven Parker. You're right, actually, I couldn't get a lot of things, so messed up with the example.
And now I can understand what you're saying. Thank you.