@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("[ListMan: name=" + this.name + " desc=" + this.desc + "] List Items:\n");
        ListItem currentItem = this.head;
        while (currentItem != null) {
            sb.append(currentItem.toString());
            sb.append("\n");
            currentItem = currentItem.getNext();
        }
        return sb.toString();
    }