An
is a growable array that allows us to add or remove an element from both the front and back. This class is the implementation class of the ArrayDeque Array Double Ended Queue Deque
interface.ArrayDeque
can be used as a stack or queue.Null
elements are prohibited.
addLast
method of the ArrayDeque
?The addLast
method can be used to add an element to the end of the ArrayDeque
object.
public void addLast(E e);
This method takes the element to be added as an argument.
This method doesn’t return any value.
The code below demonstrates how to use the addLast
method.
import java.util.ArrayDeque;class AddLast {public static void main( String args[] ) {ArrayDeque<String> arrayDeque = new ArrayDeque<>();arrayDeque.addLast("3");System.out.println("The arrayDeque is " + arrayDeque);arrayDeque.addLast("2");System.out.println("The arrayDeque is " + arrayDeque);arrayDeque.addLast("1");System.out.println("The arrayDeque is " + arrayDeque);}}
In the code above:
In line 1, we import the ArrayDeque
class.
In line 4, we create an ArrayDeque
object with the name arrayDeque
.
In line 5, we use the addLast
method of the arrayDeque
object to add an element ("3"
) to the end of the deque
and print it.
In line 8, we use the addLast
method to add an element ("2"
) to the end of the deque
and print it.
In line 11, we use the addLast
method to add an element ("1"
) to the end of the deque
.