The Java.util.ArrayDeque.iterator() method is used to return an iterator of the elements of the ArrayDeque.
Syntax:
Iterator iterate_value = Array_Deque.iterator();
Parameters: The method does not take any parameter.
Return Value: The method iterates over the elements of the deque and returns the values(iterator).
Below programs illustrate the Java.util.ArrayDeque.iterator() method:
Program 1:
// Java code to illustrate iterator()import java.util.*;  public class ArrayDequeDemo {    public static void main(String args[])    {        // Creating an empty ArrayDeque        Deque<String> de_que = new ArrayDeque<String>();          // Use add() method to add elements into the Queue        de_que.add("Welcome");        de_que.add("To");        de_que.add("Geeks");        de_que.add("4");        de_que.add("Geeks");          // Displaying the ArrayDeque        System.out.println("ArrayDeque: " + de_que);          // Creating an iterator        Iterator value = de_que.iterator();          // Displaying the values after iterating through the Deque        System.out.println("The iterator values are: ");        while (value.hasNext()) {            System.out.println(value.next());        }    }} |
Output:
ArrayDeque: [Welcome, To, Geeks, 4, Geeks] The iterator values are: Welcome To Geeks 4 Geeks
Program 2:
// Java code to illustrate iterator()import java.util.*;  public class ArrayDequeDemo {    public static void main(String args[])    {        // Creating an empty ArrayDeque        Deque<Integer> de_que = new ArrayDeque<Integer>();          // Use add() method to add elements into the Queue        de_que.add(10);        de_que.add(15);        de_que.add(30);        de_que.add(20);        de_que.add(5);          // Displaying the ArrayDeque        System.out.println("ArrayDeque: " + de_que);          // Creating an iterator        Iterator value = de_que.iterator();          // Displaying the values after iterating through the Deque        System.out.println("The iterator values are: ");        while (value.hasNext()) {            System.out.println(value.next());        }    }} |
Output:
ArrayDeque: [10, 15, 30, 20, 5] The iterator values are: 10 15 30 20 5
