The hierarchical structure of Scala collections is easy to understand. When you start working with collections, it becomes easy to use any method that is already defined in a super trait, and for specific implementations you can define your own versions. The structure has been classified in three distinct categories, that is: root, mutable, and immutable. We've discussed the differences between them. To strengthen our discussion, let's take a look at the hierarchy of root package collections:
Root collection hierarchy
The preceding hierarchy is for collections in the root package. All the collections inherited ...
