1: public void add(T newEntry) 2: { 3: Node newNode = new Node(newEntry); 4: 5: if (isEmpty()) 6: firstNode = newNode; 7: else 8: lastNode.setNextNode(newNode); 9: 10: lastNode = newNode; 11: numberOfEntries++; 12: } // end add 13: // Version 4.0