In this shot, we will discuss how to use the `Deque.getFirst()` method in Java.

The `Deque.getFirst()` method is present in the `Deque` interface inside the `java.util` package.

`Deque.getFirst()` is used to retrieve the first element of the deque. If the deque is empty, it throws a `NoSuchElementException`.
# 
#  Syntax
```
Element getFirst() 
```
# 
#  Parameters
The `Deque.getFirst()` doesn’t take parameters.

##
## Return value
The `Deque.getFirst()` method returns the first element in the deque.

##
## Working example
Let us take a look at the code snippet:

import java.util.*;
class Main 
{
    public static void main(String[] args)
    {
        Deque<Integer> d = new LinkedList<Integer>();
        
        d.add(212);
        d.add(621);
        d.add(23);
        d.add(1280);
        d.add(1171);
        
        System.out.println("Elements in the deque are: "+d);
        System.out.println("The head of the deque is: "+d.getFirst());
    }
}


# 
## Explanation

* In line 1, we imported the required package.
* In line 2, we made a `Main` class.
* In line 4, we made a `main` function.
* In line 6, we declared a deque consisting of `Integer` type elements.
* From lines 8 to 12, we inserted values in the deque by using the `Deque.add()` method.
* In line 14, we displayed the original deque elements.
* In line 15, we used the `Deque.getFirst()` method and displayed the first element in the deque with a message.

In this way, we can use `Deque.getFirst()` method in Java.


What is the Deque.getFirst() method in Java? 


Deque.getFirst() retrieves the first element of a deque, throwing NoSuchElementException if empty.