Java Deque iterator() Method

The iterator() method of Java Deque Interface is used to return an iterator for the elements in the deque in a proper sequence. The elements are returned in a order from first(head) to last(tail).

Specified by:

iterator in interface Collection<E>
iterator in interface Iterable<E>

Syntax:

Parameter:

Return:

The above method returns an iterator for the elements in the given deque in a proper sequence.

Example 1

import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Iterator;
public class JavaDequeiteratorExample1 {
   public static void main(String[] args) {
	Deque<String> deque = new ArrayDeque<>();
	   System.out.println("The series of month is given as : ");
	   deque.add("January");
	   deque.add("February");
	   deque.add("March");
	   deque.add("April");
	   deque.add("May");
	   deque.add("June");
	   deque.add("July");
	   deque.add("August");
	   deque.add("September");
	   deque.add("October");
	   deque.add("November");
	   deque.add("December");
	      for(Iterator itr = deque.iterator();
	    	itr.hasNext();)  {
	         System.out.println(itr.next());
       }
   }
}

Test it Now

Output:

The series of month is given as : 
January
February
March
April
May
June
July
August
September
October
November
December

Example 2

import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Iterator;
public class JavaDequeiteratorExample2 {
	 public static void main(String[] args) {
		Deque<Float> deque = new ArrayDeque<>();
		   System.out.println("The series of marks is given as : ");
		   deque.add(34f);
		   deque.add(25f);
		   deque.add(66f);
		   deque.add(39f);
		 for(Iterator itr = deque.iterator();
		    itr.hasNext();)  {
		     System.out.println(itr.next());
     }
  }
}

Test it Now

Output:

The series of marks is given as : 
34.0
25.0
66.0
39.0

Next TopicJava Deque

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