Java Iterator Interface | Java Collections (Java Tutorial)
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******************** What is an Iterator?
→ An iterator over a collection
→ Iterators allow the caller to remove elements from the underlying collection during the iteration with well-defined semantics.
Iterator Interface:
→ Iterator Interface is a member of Java Collections Framework.
Iterator Interface Methods:
→ Iterator Interface is a member of Java Collections Framework.
→ boolean hashNext() - Returns true if it has more elements
→ E next() - Returns the next element in the iteration
→ void remove() - Removes the last element returned by the iterator
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