The add() method is used to insert an given element at the end of this deque.
Note: This method is equivalent to addLast(E).
Package: java.util
Java Platform: Java SE 8
Syntax:
add(E e)Parameters: Name Description e The element to add.
Return Value:
true (as specified by Collection.add(E))
Return Value Type: boolean
NullPointerException - if the specified element is nullThrows:
Pictorial Presentation
Example: Java ArrayDeque Class: add() Method
import java.util.ArrayDeque;
import java.util.Deque;
public class Main {
public static void main(String[] args) {
// Create an empty array deque with an initial capacity 5
Deque<Integer> deque = new ArrayDeque<Integer>(5);
// Use add() method to add 7 elements in the deque
deque.add(10);
deque.add(20);
deque.add(30);
deque.add(40);
deque.add(50);
deque.add(60);
deque.add(70);
// Print all the elements of deque
for (Integer n : deque) {
System.out.println(n);
}
}
}
Output:
10 20 30 40 50 60 70
Java Code Editor:
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