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A set is a collection in Scala to store unordered unique items. For example, a set having strings "my" and "name" is defined as:
var myset:Set[String] = Set("my","name")
Now, let's declare a set of integers, named
intSet, having below elements.
To accomplish this, we will need to declare the set variable of type
Set[Int] as this set is going to have integers only.
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