1: // @author Frank M. Carrano, Timothy M. Henry 2: // @version 5.0 3: public void enqueue(T newEntry) 4: { 5: Node newNode = new Node(newEntry, null); 7: if (isEmpty()) 8: firstNode = newNode; 9: else 10: lastNode.setNextNode(newNode); 11: 12: lastNode = newNode; 13: } // end enqueue