Monday, October 6, 2025
HomeLanguagesJavaArrayDeque getFirst() Method in Java

ArrayDeque getFirst() Method in Java

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

Syntax:

Array_Deque.getFirst()

Parameters: The method does not take any parameter.

Return Value: The method returns the first element present in the Deque.

Below programs illustrate the Java.util.ArrayDeque.getFirst() method:

Program 1:




// Java code to illustrate getFirst()
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 first element
        System.out.println("The first element is: " + 
                                    de_que.getFirst());
    }
}


Output:

ArrayDeque: [Welcome, To, Geeks, 4, Geeks]
The first element is: Welcome

Program 2:




// Java code to illustrate getFirst()
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 first element
        System.out.println("The first element is: " + 
                                      de_que.getFirst());
    }
}


Output:

ArrayDeque: [10, 15, 30, 20, 5]
The first element is: 10
RELATED ARTICLES

Most Popular

Dominic
32338 POSTS0 COMMENTS
Milvus
86 POSTS0 COMMENTS
Nango Kala
6708 POSTS0 COMMENTS
Nicole Veronica
11872 POSTS0 COMMENTS
Nokonwaba Nkukhwana
11936 POSTS0 COMMENTS
Shaida Kate Naidoo
6827 POSTS0 COMMENTS
Ted Musemwa
7090 POSTS0 COMMENTS
Thapelo Manthata
6780 POSTS0 COMMENTS
Umr Jansen
6784 POSTS0 COMMENTS