🍡iterator

An iterator in Java is an object used to loop through collections of objects13456. It is derived from the technical term "iterating," which means looping through16. An iterator is an interface that is used to traverse a collection of Java object components one by one4. It is a universal cursor that can be applied to any Collection object5. To use an iterator, you must import it from the java.util package1. The iterator() method can be used to get an Iterator for any collection1. The hasNext() method checks if there is another element in the collection that can be iterated over, the next() method returns the next element in the collection, and the remove() method removes the current element from the collection25. The Java Iterator is also known as the universal cursor of Java as it is appropriate for all the classes of the Collection framework4. When a user needs to use the Java Iterator, then it's compulsory for them to make an instance of the Iterator interface from the collection of objects they desire to traverse over4.