In Scala, the
HashSet class is a commonly used collection that implements an unordered set of elements. It is part of the Scala standard library and provides efficient operations for adding, removing, and checking membership of elements.
HashSet in Scala, you first need to import it from the
Then, you can create an instance of
HashSet and add elements to it using the
val set = HashSet("apple", "banana", "orange")
set += "grape"
You can also remove elements from the set using the
set -= "banana"
To check if an element is present in the set, you can use the
val containsOrange = set.contains("orange")
HashSet class in Scala provides a fast lookup time for checking membership and efficient addition and removal of elements. It is implemented using a hash table data structure, which allows for constant-time complexity on average for these operations.
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