facultybooklist_main.java

Hi, this program is for my Java assignment.. this is a simple program which make use of JTable, MDI,

/**
* Main screen/program, using MDI method
*/
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;

public class FacultyBookList_Main extends JFrame implements ActionListener,
												 					  InternalFrameListener {
//-------------------------------------------- FacultyBookList Constructor
	public FacultyBookList_Main() {
		//<!-- INIT_MENUS - For File Menu
		jmnuFile.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuFile.setText("File");
		jmnuFile.setActionCommand("File");
		jmnuFile.setBorderPainted(false);
		jmnuFile.setMnemonic((int)'F');
		jmnuMain.add(jmnuFile);

		jmnuiNew.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiNew.setText("New");
		jmnuiNew.setActionCommand("New");
		jmnuiNew.setBorderPainted(false);
		jmnuiNew.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, Event.CTRL_MASK));
		jmnuiNew.setMnemonic((int)'N');
		jmnuFile.add(jmnuiNew);

		jmnuiSave.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiSave.setText("Save");
		jmnuiSave.setActionCommand("Save");
		jmnuiSave.setBorderPainted(false);
		jmnuiSave.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, Event.CTRL_MASK));
		jmnuiSave.setMnemonic((int)'S');
		jmnuFile.add(jmnuiSave);

		jmnuFile.addSeparator();

		jmnuiDelete.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiDelete.setText("Delete");
		jmnuiDelete.setActionCommand("Delete");
		jmnuiDelete.setBorderPainted(false);
		jmnuiDelete.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_D, Event.CTRL_MASK));
		jmnuiDelete.setMnemonic((int)'D');
		jmnuFile.add(jmnuiDelete);

		jmnuiCancel.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiCancel.setText("Cancel");
		jmnuiCancel.setActionCommand("Cancel");
		jmnuiCancel.setBorderPainted(false);
		jmnuiCancel.setMnemonic((int)'A');
		jmnuFile.add(jmnuiCancel);

		jmnuFile.addSeparator();

		jmnuiExit.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiExit.setText("Exit");
		jmnuiExit.setActionCommand("Exit");
		jmnuiExit.setBorderPainted(false);
		jmnuiExit.setMnemonic((int)'X');
		jmnuFile.add(jmnuiExit);

		// For Edit Menu
		jmnuEdit.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuEdit.setText("Edit");
		jmnuEdit.setActionCommand("Edit");
		jmnuEdit.setBorderPainted(false);
		jmnuEdit.setMnemonic((int)'E');
		jmnuMain.add(jmnuEdit);

		jmnuiFind.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiFind.setText("Find");
		jmnuiFind.setActionCommand("Find");
		jmnuiFind.setBorderPainted(false);
		jmnuiFind.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, Event.CTRL_MASK));
		jmnuiFind.setMnemonic((int)'F');
		jmnuEdit.add(jmnuiFind);

		// For View Menu
		jmnuView.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuView.setText("View");
		jmnuView.setActionCommand("View");
		jmnuView.setBorderPainted(false);
		jmnuView.setMnemonic((int)'V');
		jmnuMain.add(jmnuView);

		jmnuiFB.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiFB.setText("Faculty Books Details");
		jmnuiFB.setActionCommand("Faculty Books Details");
		jmnuiFB.setBorderPainted(false);
		jmnuiFB.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_U, Event.CTRL_MASK));
		jmnuiFB.setMnemonic((int)'U');
		jmnuView.add(jmnuiFB);

		jmnuiBooks.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiBooks.setText("Book Details");
		jmnuiBooks.setActionCommand("Book Details");
		jmnuiBooks.setBorderPainted(false);
		jmnuiBooks.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_B, Event.CTRL_MASK));
		jmnuiBooks.setMnemonic((int)'B');
		jmnuView.add(jmnuiBooks);

		jmnuiCourses.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiCourses.setText("Course Details");
		jmnuiCourses.setActionCommand("Course Details");
		jmnuiCourses.setBorderPainted(false);
		jmnuiCourses.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, Event.CTRL_MASK));
		jmnuiCourses.setMnemonic((int)'O');
		jmnuView.add(jmnuiCourses);

		jmnuView.addSeparator();

		jmnuiFBL.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiFBL.setText("Faculty Books List");
		jmnuiFBL.setActionCommand("Faculty Books List");
		jmnuiFBL.setBorderPainted(false);
		jmnuiFBL.setMnemonic((int)'L');
		jmnuView.add(jmnuiFBL);

		jmnuView.addSeparator();

		jmnuiBack.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiBack.setText("Back");
		jmnuiBack.setActionCommand("Back");
		jmnuiBack.setBorderPainted(false);
		jmnuiBack.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_K, Event.CTRL_MASK));
		jmnuiBack.setMnemonic((int)'k');
		jmnuView.add(jmnuiBack);

		jmnuiNext.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiNext.setText("Next");
		jmnuiNext.setActionCommand("Next");
		jmnuiNext.setBorderPainted(false);
		jmnuiNext.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_T, Event.CTRL_MASK));
		jmnuiNext.setMnemonic((int)'t');
		jmnuView.add(jmnuiNext);

		// For Help Menu
		jmnuHelp.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuHelp.setText("Help");
		jmnuHelp.setActionCommand("Help");
		jmnuHelp.setBorderPainted(false);
		jmnuHelp.setMnemonic((int)'H');
		jmnuMain.add(jmnuHelp);

		jmnuiAbout.setFont(new Font("Dialog", Font.PLAIN, 12));
		jmnuiAbout.setText("About...");
		jmnuiAbout.setActionCommand("About...");
		jmnuiAbout.setBorderPainted(false);
		jmnuiAbout.setMnemonic((int)'A');
		jmnuHelp.add(jmnuiAbout);
		//-->

		//<!-- INIT_TOOLBARS
		jbtnNew.setToolTipText("Create new record");
		jbtnSave.setToolTipText("Save the change(s)");
		jbtnDelete.setToolTipText("Delete this record");
		jbtnCancel.setToolTipText("Cancel the change(s) and/or close");
		jbtnFind.setToolTipText("Find");
		jbtnFB.setToolTipText("Faculty books details");
		jbtnBooks.setToolTipText("Book details");
		jbtnCourses.setToolTipText("Course details");
		jbtnFBL.setToolTipText("View faculty books list");
		jbtnBack.setToolTipText("Show previous record");
		jbtnNext.setToolTipText("Show next record");
		jtbrMain.add(jbtnNew);
		jtbrMain.add(jbtnSave);
		jtbrMain.addSeparator();
		jtbrMain.add(jbtnDelete);
		jtbrMain.add(jbtnCancel);
		jtbrMain.addSeparator();
		jtbrMain.add(jbtnFB);
		jtbrMain.add(jbtnBooks);
		jtbrMain.add(jbtnCourses);
		jtbrMain.add(jbtnFBL);
		jtbrMain.addSeparator();
		jtbrMain.add(jbtnFind);
		jtbrMain.add(jbtnBack);
		jtbrMain.add(jbtnNext);
		//-->

		//<!-- REGISTER_LISTENERS
		addWindowListener(new WindowAdapter() {
      	public void windowClosing(WindowEvent e) {
         	mtd_exitApplication();
         }
      });

		// For Menu Listeners
		jmnuiNew.addActionListener(this);
		jmnuiSave.addActionListener(this);
		jmnuiDelete.addActionListener(this);
		jmnuiCancel.addActionListener(this);
		jmnuiExit.addActionListener(this);
		jmnuiFind.addActionListener(this);
		jmnuiFB.addActionListener(this);
		jmnuiBooks.addActionListener(this);
		jmnuiCourses.addActionListener(this);
		jmnuiFBL.addActionListener(this);
		jmnuiBack.addActionListener(this);
		jmnuiNext.addActionListener(this);
		jmnuiAbout.addActionListener(this);

		// For Toolbars Listeners
		jbtnNew.addActionListener(this);
		jbtnSave.addActionListener(this);
		jbtnDelete.addActionListener(this);
		jbtnCancel.addActionListener(this);
		jbtnFind.addActionListener(this);
		jbtnFB.addActionListener(this);
		jbtnBooks.addActionListener(this);
		jbtnCourses.addActionListener(this);
		jbtnFBL.addActionListener(this);
		jbtnBack.addActionListener(this);
		jbtnNext.addActionListener(this);
		//-->

		//<!-- INIT_CONTROLS
		setSize(600,500);
		setVisible(false);
		setResizable(false);
		setJMenuBar(jmnuMain);
		setTitle("USQ Faculty Book List");
		setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
		// Made the screen appear center
		setLocation((Toolkit.getDefaultToolkit().getScreenSize().width  - getWidth())/2,
						(Toolkit.getDefaultToolkit().getScreenSize().height - getHeight())/2);
		// Show time at the status bar (JLabel)
		jlblStatusBar.setHorizontalAlignment(SwingConstants.RIGHT);
		jlblStatusBar.setForeground(Color.black);
		jlblStatusBar.setFont(new Font("Dialog", Font.PLAIN, 10));
		new clsTimerTime(jlblStatusBar, 1);
		// When you drag a internal frame you will only see the outline
		// and it doesnt repaint until you stop dragging this makes dragging faster.
		jdpDesktop.putClientProperty("JDesktopPane.dragMode", "outline");
		getContentPane().add(jtbrMain, BorderLayout.NORTH);
		getContentPane().add(jdpDesktop, BorderLayout.CENTER);
		getContentPane().add(jlblStatusBar, BorderLayout.SOUTH);
		// Load data from text file into array(s)
		objFileHdl = new clsFileHdl();
		arrBook    = objFileHdl.mtd_BookFile();
		arrCourse  = objFileHdl.mtd_CourseFile();
		arrFaculty = objFileHdl.mtd_FacultyBookFile();
		//-->
	}

//-------------------------------------------- FacultyBookList Action performer
	private void mtd_exitApplication() {
		try {
	    	// Show a confirmation dialog
	    	int reply = JOptionPane.showConfirmDialog(this,
	    	                                          "Do you really want to exit?",
	    	                                          "USQ Faculty Book List - Exit" ,
	    	                                          JOptionPane.YES_NO_OPTION,
	    	                                          JOptionPane.QUESTION_MESSAGE);
			// If the confirmation was affirmative, handle exiting.
			if (reply == JOptionPane.YES_OPTION) {
				// Make sure all array have the latest copy
				mtd_JInternalFrame("");
				// Write Array into text file
				objFileHdl.mtd_BookFile(arrBook);
				objFileHdl.mtd_CourseFile(arrCourse);
				objFileHdl.mtd_FacultyBookFile(arrFaculty);
		    	setVisible(false);    					// hide the Frame
		    	dispose();            					// free the system resources
		    	System.exit(0);            			// close the application
			}
		} catch(Exception e) {}