Method add

src/main/java/com/thealgorithms/datastructures/bags/Bag.java:61–67

Adds an element to the bag. This method adds the specified element to the bag. Duplicates are allowed, and the bag will maintain the order in which elements are added. @param element the element to add; must not be null

(E element)

     * @param element the element to add; must not be {@code null}
     */
    public void add(E element) {
        Node<E> newNode = new Node<>();
        newNode.content = element;
        newNode.nextElement = firstElement;
        firstElement = newNode;
        size++;
    }

    /**
     * Checks if the bag contains a specific element.