In java while using the HashMap, they are using the Iterator class. But I can’t understand for what purpose they are using Iterator in HashMap?
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In java while using the HashMap, they are using the Iterator class. But I can’t understand for what purpose they are using Iterator in HashMap?
Iterators should e used to read the elements from any kind of Collections like ArrayList, HAshMap etc.
They will help us to navigate through the Iterator Objects, if they are not there, how can we retrieve the elements from the collection?