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iOS Object-Oriented Swift Class Inheritance Overriding Properties

Niilo Pirttijärvi
PLUS
Niilo Pirttijärvi
Courses Plus Student 2,354 Points
Posted by Niilo Pirttijärvi
Niilo Pirttijärvi
Courses Plus Student 2,354 Points

I don't understand why some things are done in the tutorial? 

override init(x: Int, y: Int){
    super.init(x: x, y: y)
}

I don't understand why the super.init(x: x, y: y) part was needed. I understand how and why the override is used but not what the super.init part here is doing?

1 Answer

Jari Koopman
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.a{fill-rule:evenodd;}techdegree seal-36
Jari Koopman
Python Web Development Techdegree Graduate 29,349 Points
Jari Koopman
.a{fill-rule:evenodd;}techdegree seal-36
Jari Koopman
Python Web Development Techdegree Graduate 29,349 Points

Hi Niilo,

Because you're overriding the init from a superclass, you have to first initialise the superclass, before you can start doing things for the subclass. More info on subclassing can be found in the docs under Initializer Inheritance and Overriding

Hope this helped,

Regards, Jari