Iterator

(Referrence: TutorialsPoint)

Each of the collection classes provides an iterator( ) method that returns an iterator to the start of the collection. By using this iterator object, you can access each element in the collection, one element at a time.



Examples:

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class ArrayListLoopingExample {
public static void main(String[] args) {

List<String> list = new ArrayList<String>();
list.add("Text 1");
list.add("Text 2");
list.add("Text 3");

Iterator<String> iterator = list.iterator();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
}
}