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Start your free trialTim Kuzmin
7,812 PointsImmutable vs Final. Kotlin vs Java.
Hello! Thanks for this course - it's cool c: Are we using mutable and immutable terms correctly here? In Java, this means means something like this: "Mutable objects have fields that can be changed, immutable objects have no fields that can be changed after the object is created.". Does "immutable" means Javas "final" or not? Why do we call some properties "immutable" (if they just "read-only")? Can we change inside properties in val properties?
1 Answer
Tawanda Mukungureyi
7,361 PointsHie, note that 'immutable' is applicable to objects only whilst 'final' keyword is applied to variables
Tim Kuzmin
7,812 PointsTim Kuzmin
7,812 Pointsto variables of this object, right?
Actually I think I got it, but in video we'd say that val means immutable(if I correctly understood). I think that it's not right. Val is read-only - val property can contain mutable object too. May be author meant something like: "this property now immutable", but that also wrong - we use term "immutable" when we speak about objects.
Are you agree with this?