jlibrary.java

用java编写的图书馆管理程序

package bookmanager;


//import the packages for using the classes in them into the program
   import java.awt.*;
   import java.awt.event.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.*;
import javax.swing.KeyStroke;



/**
 *A public class
 */
   public class JLibrary extends JFrame implements ActionListener {
   /***************************************************************************
    ***      declaration of the private variables used in the program       ***
    ***************************************************************************/
   
   //for creating the JMenuBar that contains the JMenu
      private JMenuBar menubar = new JMenuBar();
   //for creating the JMenu for the program
      private JMenu fileMenu, bookMenu, memberMenu, searchMenu, loanMenu, helpMenu;
   //for creating the JMenuItem for JMenu
      private JMenuItem login, addOperater, exit, addBook, listBook, listAvailbleBook, 
      listBorrowedBook, addMember, removeMember, listMember,
      searchBooksAndMembers, borrowBook, returnBook, help, about;
   //for creating an imageIcon
      private ImageIcon[] icons;
   //for creating the name of the image file 16*16
      private String[] imageName16 = {"images/Export16.gif","images/Add16.gif","images/Exit16.gif",
         "images/Add16.gif","images/List16.gif",
         "images/Delete16.gif","images/Find16.gif",
         "images/Import16.gif",
         //"images/Export16.gif",
         "images/Help16.gif","images/About16.gif"};
   //for creating ToolBar for the program
      private JToolBar toolbar = new JToolBar("Tool Bar");
   //for creating the buttons to use them in ToolBar
      private JButton[] button;
   //for creating the name of the image file 24*24
      private String[] imageName24 = {"images/Add24.gif", "images/List24.gif",
         "images/List24.gif","images/List24.gif",
         "images/Add24.gif", "images/List24.gif",
         "images/Delete24.gif","images/Find24.gif",
         "images/Export24.gif","images/Import24.gif",
         "images/Help24.gif","images/About24.gif",
         "images/Export24.gif","images/Add24.gif",
         "images/Exit24.gif"};
   //for creating the tipText for the toolbar
      private String[] tipText = {"Add Books","List All Books","List Availble Books",
         "List Borrowed Books","Add Members","List Members",
         "Remove Members","Search","Borrow Books",
         "Return Books","Help","About","Login","Add Operater","Exit"};
   //for creating JDeskTopPane for using JInternalFrame on the desktop
      public JDesktopPane desktop = new JDesktopPane();
   
   /***************************************************************************
    *create objects from another classes for using them in the ActionListener *
    ***************************************************************************/
      private Login logined;
      private addOperater addOperaterd;
      private listBooks listBooK;
      private addBooks addBooK;
      private listAvailbleBooks listAvailble;
      private listBorrowedBooks listBorrowed;
      private borrowBooks borrowBooK;
      private returnBooks returnBooK;
      private addMembers addMembeR;
      private listMembers listMembeR;
      private removeMembers removeMembeR;
      private searchBooksAndMembers search;
      //constructor of JLibrary
      public JLibrary() {
      //for setting the title for the frame
         super("JAVA Library System");
      //for settting an icon for the program
         Toolkit kit = Toolkit.getDefaultToolkit();
         Image image = kit.getImage(ClassLoader.getSystemResource("images/Host16.gif"));
         setIconImage(image);
      
      //for setting the menu bar
         setJMenuBar(menubar    = new JMenuBar());
      //for adding book, member, search, loan & help Menus to the menu bar
         menubar.add(fileMenu   = new JMenu("File"));
         menubar.add(bookMenu   = new JMenu("Books"));
         menubar.add(memberMenu = new JMenu("Members"));
         menubar.add(searchMenu = new JMenu("Search"));
         menubar.add(loanMenu   = new JMenu("Loan"));
         menubar.add(helpMenu   = new JMenu("Help"));
         
      
   //for setting the mnemonic
         fileMenu.setMnemonic('f');
         bookMenu.setMnemonic('b');
         memberMenu.setMnemonic('m');
         searchMenu.setMnemonic('s');
         loanMenu.setMnemonic('l');
         helpMenu.setMnemonic('h');
      
      //for setting the image icons
         icons = new ImageIcon[10];
         for(int i = 0; i < 10; i++) {
            icons[i] = new ImageIcon(ClassLoader.getSystemResource(imageName16[i]));
         }
      
      //for adding add, list, listAvailble & listBorrowed Books to the bookMenu
         fileMenu.add(login = new JMenuItem("Login", icons[0]));
         fileMenu.add(addOperater= new JMenuItem("Add Operater",icons[1]));
      
       
         
         fileMenu.add(exit = new JMenuItem("Exit", icons[2]));
      //for adding the actionListener
         login.addActionListener(this);
         addOperater.addActionListener(this);
         exit.addActionListener(this);
      
      //for adding add, list, listAvailble & listBorrowed Books to the bookMenu
         bookMenu.add(addBook  = new JMenuItem("Add Book", icons[1]));
         bookMenu.add(listBook = new JMenuItem("List All Books", icons[4]));
         bookMenu.add(listAvailbleBook = new JMenuItem("List Availble Books", icons[4]));
         bookMenu.add(listBorrowedBook = new JMenuItem("List Borrowed Books", icons[4]));
      //for adding the actionListener
         addBook.addActionListener(this);
         listBook.addActionListener(this);
         listAvailbleBook.addActionListener(this);
         listBorrowedBook.addActionListener(this);
      
      //for adding add, list & remove Members to the memberMenu
         memberMenu.add(addMember   = new JMenuItem("Add Member", icons[1]));
         memberMenu.add(listMember  = new JMenuItem("List All Members", icons[4]));
         memberMenu.add(removeMember= new JMenuItem("Remove Member", icons[5]));
      //for adding the actionListener
         addMember.addActionListener(this);
         listMember.addActionListener(this);
         removeMember.addActionListener(this);
      
      //for adding add, list & remove Members to the memberMenu
         searchMenu.add(searchBooksAndMembers = new JMenuItem("Search", icons[6]));
      //for adding the actionListener
         searchBooksAndMembers.addActionListener(this);
      
      //for adding borrow & return books to the loanMenu
         loanMenu.add(borrowBook = new JMenuItem("Borrow a Book", icons[0]));
         loanMenu.add(returnBook = new JMenuItem("Return a Book", icons[7]));
      //for adding the actionListener
         borrowBook.addActionListener(this);
         returnBook.addActionListener(this);
      
      //for adding help & about to the helpMenu
         helpMenu.add(help = new JMenuItem("Help", icons[8]));
         helpMenu.add(about= new JMenuItem("About", icons[9]));
      //for adding the actionListener
         help.addActionListener(this);
         about.addActionListener(this);
      
      //get the graphical user interface components display area
         Container cp = getContentPane();
      //for setting the ContentPane
         cp.add(desktop);
      //for setting the background
         ///desktop.setBackground(Color.GRAY);
      //for Making dragging faster
         desktop.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
      //for adding the toolbar to the container
         cp.add("North", toolbar);
      
         button = new JButton[15];
         for(int i = 0; i < 15; i++) {
            if(i == 4 || i == 7 || i == 10 || i == 12)
               toolbar.addSeparator();
            toolbar.add(button[i] = new JButton(new ImageIcon(ClassLoader.getSystemResource(imageName24[i]))));
            button[i].setToolTipText(tipText[i]);
            button[i].addActionListener(this);
         }
         login.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, InputEvent.ALT_MASK));
         addOperater.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.ALT_MASK));
         exit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5, ActionEvent.CTRL_MASK));
         searchBooksAndMembers.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
      
         addBook.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK));
         listBook.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, ActionEvent.CTRL_MASK));
      
         addMember.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_M, ActionEvent.CTRL_MASK));
         listMember.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_I, ActionEvent.CTRL_MASK));
         removeMember.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, ActionEvent.CTRL_MASK));
      
         borrowBook.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_B, ActionEvent.CTRL_MASK));
         returnBook.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, ActionEvent.CTRL_MASK));
      
         help.setAccelerator(KeyStroke.getKeyStroke("F1"));
         about.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_T, ActionEvent.CTRL_MASK));
      
         addWindowListener(
                             new WindowAdapter() {
                                public void windowClosing(WindowEvent e) {
                                   System.exit(0);
                                }
         	public void windowOpened(WindowEvent arg0) {
         		handleThisWindowOpened(arg0);
         	}
                             });
      
         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
         int width = 750, height = 550;
         if(screenSize.width >800)
            width = 950; 
         if (screenSize.height >600)
            height = 650;
         setSize(width, height);
         setLocation((screenSize.width - width)/2,(screenSize.height-height) / 2);
      //for setting the JFrame Visible
         setVisible(true);
      }
   /**
    *this method is invoked when an action occurs.
    *@param e the action event.
    */
      public void actionPerformed(ActionEvent ae) {
         if(ae.getSource() == addBook || ae.getSource() == button[0]) {
            Thread runner = 
               new Thread() {
                  public void run() {
                     addBooK = new addBooks();
                     desktop.add(addBooK);
                     try {
                        addBooK.setSelected(true);
                     }
                        catch(java.beans.PropertyVetoException e) {
                        }
                  }
               };
            runner.start();
         }
         if(ae.getSource() == listBook || ae.getSource() == button[1]) {
            Thread runner = 
               new Thread() {
                  public void run() {
                     listBooK = new listBooks();
                     desktop.add(listBooK);
                     try {
                        listBooK.setSelected(true);
                     }
                        catch(java.beans.PropertyVetoException e) {
                        }