SSD3实验参考答案

import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.io.*; import java.text.*; /** * Gourmet Coffee System. * * @author iCarnegie * @version 1.1.0 * @see Product * @see Coffee * @see CoffeeBrewer * @see Catalog * @see OrderItem * @see Order * @see Sales * @see CatalogLoader * @see FileCatalogLoader * @see DataFormatException * @see SalesFormatter * @see PlainTextSalesFormatter * @see HTMLSalesFormatter * @see XMLSalesFormatter * @see DataField */ public class GourmetCoffeeGUI extends JPanel { /** * */ private static final long serialVersionUID = 1L; /* Standar error stream */ static private PrintWriter stdErr = new PrintWriter(System.err, true); /* Window width in pixels */ static private int WIDTH = 620; /* Window height in pixels */ static private int HEIGHT = 530; /* Size of the catalog list cell in pixels */ static private int CATALOG_CELL_SIZE = 50; /* Visible rows in catalog list */ static private int CATALOG_LIST_ROWS = 14; /* Size of the order list cell in pixels */ static private int ORDER_CELL_SIZE = 100; /* Visible rows in order list */ static private int ORDER_LIST_ROWS = 6; /* Size quantity text field */ static private int QUANTITY__TEXTFIELD_SIZE = 5; /* Size total text field */ static private int TOTAL__TEXTFIELD_SIZE = 8; /* Rows in status text area rows */ static private int STATUS_ROWS = 10; /* Rows in status text area cols */ static private int STATUS_COLS = 40; private JList catalogList; private JList orderList; private JButton addModifyButton; private JButton removeButton; private JButton registerSaleButton; private JButton displaySalesButton; private JButton saveSalesButton; private JPanel productPanel; private JLabel quantityLabel; private JLabel totalLabel; private JTextField quantityTextField; private JTextField totalTextField; private JTextArea statusTextArea; private JRadioButton plainRadioButton; private JRadioButton HTMLRadioButton; private JRadioButton XMLRadioButton; private JFileChooser fileChooser; private Catalog catalog; private Order currentOrder; private Sales sales; private SalesFormatter salesFormatter; private NumberFormat dollarFormatter; /** * Loads a product catalog and starts the application. * * @param args String arguments. Not used. * @throws IOException if there are errors in the loading the catalog. */ public static void main(String[] args) throws IOException { String filename = ""; if (args.length != 1) { filename = "catalog.dat"; } else { filename = args[0]; } try { Catalog catalog = (new FileCatalogLoader()).loadCatalog(filename); JFrame frame = new JFrame("Gourmet Coffee"); frame.setContentPane(new GourmetCoffeeGUI(catalog)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(WIDTH, HEIGHT); frame.setResizable(true); Dimension frameSize=frame.getSize(); Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize(); frame.setLocation((screenSize.width-frameSize.width)/2, (screenSize.height-frameSize.height)/2); frame.setVisible(true); } catch (FileNotFoundException fnfe) { stdErr.println("The file does not exist"); System.exit(1); } catch (DataFormatException dfe) { stdErr.println("The file contains malformed data: " + dfe.getMessage()); System.exit(1); } } /** * Instantiates the components and arranges them in a window. * * @param initialCatalog a product catalog. */ public GourmetCoffeeGUI(Catalog initialCatalog) { // create the components catalogList = new JList(); orderList = new JList(); catalogList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); catalogList.setVisibleRowCount(CATALOG_LIST_ROWS); catalogList.setFixedCellWidth(CATALOG_CELL_SIZE); orderList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); orderList.setVisibleRowCount(ORDER_LIST_ROWS); orderList.setFixedCellWidth(ORDER_CELL_SIZE); addModifyButton = new JButton("Add|Modify Order Item"); removeButton = new JButton("Remove Order Item"); registerSaleButton = new JButton("Register Sale of Current Order"); displaySalesButton = new JButton("Display Sales"); saveSalesButton = new JButton("Save Sales"); quantityLabel = new JLabel("Quantity:"); totalLabel = new JLabel("Total:"); quantityTextField = new JTextField("", QUANTITY__TEXTFIELD_SIZE); totalTextField = new JTextField("$0.00", TOTAL__TEXTFIELD_SIZE); totalTextField.setEditable(false); statusTextArea = new JTextArea(STATUS_ROWS, STATUS_COLS); statusTextArea.setEditable(false); plainRadioButton = new JRadioButton("Plain", true); HTMLRadioButton = new JRadioButton("HTML"); XMLRadioButton = new JRadioButton("XML"); ButtonGroup group = new ButtonGroup(); group.add(plainRadioButton); group.add(HTMLRadioButton); group.add(XMLRadioButton); // Product Information panel productPanel = new JPanel(); productPanel.setBorder( BorderFactory.createTitledBorder("Product Information")); // Catalog panel JPanel catalogPanel = new JPanel(); catalogPanel.setBorder(BorderFactory.createTitledBorder("Catalog")); catalogPanel.add ( new JScrollPane(catalogList, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER)); // "Add|Modify Product" panel JPanel centralPanel = new JPanel(new BorderLayout()); JPanel addModifyPanel = new JPanel(new GridLayout(2, 1)); JPanel quantityPanel = new JPanel(); quantityPanel.add(quantityLabel); quantityPanel.add(quantityTextField); addModifyPanel.add(quantityPanel); addModifyPanel.add(addModifyButton); centralPanel.add(productPanel, BorderLayout.CENTER); centralPanel.add(addModifyPanel, BorderLayout.SOUTH); // Order panel JPanel orderPanel = new JPanel(new BorderLayout()); orderPanel.setBorder(BorderFactory.createTitledBorder("Order")); JPanel totalPanel = new JPanel(); totalPanel.add(totalLabel); totalPanel.add(totalTextField); JPanel buttonsPanel = new JPanel(new GridLayout(2, 1)); buttonsPanel.add(removeButton); buttonsPanel.add(registerSaleButton); orderPanel.add(totalPanel, BorderLayout.NORTH); orderPanel.add(new JScrollPane(orderList, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER), BorderLayout.CENTER); orderPanel.add(buttonsPanel, BorderLayout.SOUTH); // Status panel JPanel bottomPanel = new JPanel(new BorderLayout()); bottomPanel.setBorder(BorderFactory.createTitledBorder("Status")); JPanel salesButtonsPanel = new JPanel(new GridLayout(1, 5)); salesButtonsPanel.add(plainRadioButton); salesButtonsPanel.add(HTMLRadioButton); salesButtonsPanel.add(XMLRadioButton); salesButtonsPanel.add(displaySalesButton); salesButtonsPanel.add(saveSalesButton); bottomPanel.add (new JScrollPane(statusTextArea, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED), BorderLayout.CENTER); bottomPanel.add(salesButtonsPanel, BorderLayout.SOUTH); // arrange panels in window setLayout(new BorderLayout()); add(catalogPanel, BorderLayout.WEST); add(centralPanel, BorderLayout.CENTER); add(orderPanel, BorderLayout.EAST); add(bottomPanel, BorderLayout.SOUTH); // start listening for list and buttons events catalogList.addListSelectionListener(new DisplayProductListener()); addModifyButton.addActionListener(new AddModifyListener()); removeButton.addActionListener(new RemoveListener()); registerSaleButton.addActionListener(new RegisterSaleListener()); displaySalesButton.addActionListener(new DisplaySalesListener()); saveSalesButton.add