Why is it impossible to specify the designer signature in the interface without implementation?
- because the constructor is not part of the interface. - Grundy
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2 answers
Interfaces should not describe objects and their fields, they should describe actions. Therefore, the interface can not describe the signature of the constructor.
Komdosh komdosh
8,858 13 41
- however, we can describe the internal class and the implementation of the method in it - heff
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the interface cannot "know" to which class it will be applied, hence there is no possibility of knowing about a particular method - the class constructor
keekkenen keekkenen
647 6 9
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