Java ArrayDeque.addFirst(E e)
Syntax
ArrayDeque.addFirst(E e) has the following syntax.
public void addFirst(E e)
Example
In the following code shows how to use ArrayDeque.addFirst(E e) method.
/*from w w w .j a v a2 s . c o m*/
import java.util.ArrayDeque;
import java.util.Deque;
public class Main {
public static void main(String[] args) {
Deque<Integer> deque = new ArrayDeque<Integer> (5);
deque.add(25);
deque.add(2);
deque.add(35);
deque.addFirst(10);
deque.addFirst(3);
deque.addFirst(1);//now, element 1 will be at the front
deque.add(45);
deque.add(40);
System.out.println(deque);
}
}
The code above generates the following result.
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