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ArrayDeque element() Method in Java

  • Last Updated : 10 Dec, 2018

The java.util.ArrayDeque.element() method in Java is used to retrieve or fetch the head of the ArrayDeque. In the process, the method does not delete the element from the deque instead it just returns the element.

Syntax:

Array_Deque.element()

Parameters: The method does not take any parameter.

Return Value: The method returns the element present at the head of the Deque.

Below programs illustrate the Java.util.ArrayDeque.element() method:
Program 1:




// Java code to illustrate ArrayDeque element() method
import java.util.*;
  
public class ArrayDequeDemo {
    public static void main(String args[])
    {
        // Creating an empty ArrayDeque
        ArrayDeque<String> de_que = new ArrayDeque<String>();
  
        // Use add() method to add elements into the Deque
        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);
  
        // Displaying the head
        System.out.println("The head element is: " + de_que.element());
    }
}
Output:
ArrayDeque: [Welcome, To, Geeks, 4, Geeks]
The head element is: Welcome

Program 2:




// Java code to illustrate ArrayDeque element() method
import java.util.*;
  
public class ArrayDequeDemo {
    public static void main(String args[])
    {
        // Creating an empty ArrayDeque
        ArrayDeque<Integer> de_que = new ArrayDeque<Integer>();
  
        // Use add() method to add elements into the Deque
        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);
  
        // Displaying the head
        System.out.println("The head element is: " + de_que.element());
    }
}
Output:
ArrayDeque: [10, 15, 30, 20, 5]
The head element is: 10

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