Nov 22, 2025 · An Iterator in Java is one of the most commonly used cursors in the Java Collections Framework. It is used to traverse or iterate through elements of a collection one by one.

Iterators allow the caller to remove elements from the underlying collection during the iteration with well-defined semantics. Method names have been improved. This interface is a member of the Java …

Jun 27, 2025 · In this tutorial, we’re going to review the simple Iterator interface to learn how we can use its different methods. We’ll also check the more robust ListIterator extension which adds some …

An Iterator is an object that can be used to loop through collections, like ArrayList and HashSet. It is called an "iterator" because "iterating" is the technical term for looping.

Jul 18, 2024 · Throughout this article, you’ll learn how to use iterator in the Java Collections framework to traverse elements in collections such as List, Set, Map and Queue.

In computer programming, an iterator is an object that progressively provides access to each item of a collection, in order. [1][2][3] A collection may provide multiple iterators via its interface that provide …

Jun 30, 2022 · Java iterator is an interface that provides a standardized way to traverse elements in a collection sequentially, one element at a time. It acts as a cursor, meaning a pointer that moves …