Data Types

In the following lesson, you will be introduced to Scala's type hierarchy.


In Scala, every value has a type and each type is part of a type hierarchy. In a type hierarchy, the more generic types are at the top and as you go lower in the hierarchy, the types get more specific, i.e., have more requirements. Each type has a requirement of its own along with the requirements of all the types above it in the hierarchy.

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