scalahierarchytype-systems
Why's type lattice in Scala?
I heard someone said:
"Scala uses a type lattice rather than a type hierarchy, which is different from Java".
I do not quite understand what the meaning type lattice is and what the main difference between type lattice and type hierarchy is.
Could someone explain this term to me?
Solution
Its essentially means that : The type hierarchy for Scala is a lattice, i.e. it has a “bottom” as well as a “top”.
As seen from the image the top type here is Any and the bottom is Nothing.
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