complicated code, 900 labels.

[Nicky Eng]

i have 2 problems.
1st --> i want the blue color label(seat) retrieved from seatNumber.txt cannot be mouseClick and etc. But the one i run the seat normally display as blue color. first text in my searNumber.txt is 1, so the 1st label in the panel cannot be mouseClick and etc, it ONLY be blue color, but the rest blue color label can be mouseClick...
i want all the blue color label cannot be mouseClick...
maybe something wrong about my arrangement of coding, but i still cannot figure out, and tried so many times swapping them.

2st --> once i click on the "confirm" button, it can saved the name of labels(i given them a name for each label) into seatNumber.txt, but it keep repeating the name,for example:

i click 2 labels(named "3" and "4") on the panel, and click confirm button. It save the name of "3" 5 times, and "4" 5 times as well.

so i think is my looping problem but i keep chaging the arrangement,still nothing works.

so i'm here to ask for help.
here is my files:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
 
 
public class SeatPanel extends javax.swing.JPanel {
 
    /** Creates new form custInfoPanel */
    public SeatPanel() {
        initComponents();
    }
 
 
    private void initComponents() {
 
 
        title = new javax.swing.JLabel();
        jSeparator1 = new javax.swing.JSeparator();
        stageScreen = new javax.swing.JLabel();
blueBox = new JLabel();
greenBox = new JLabel();
blueExp = new JLabel();
greenExp = new JLabel();
 
 
p=new JPanel();
sp= new JScrollPane();
 
 
        setLayout(null);
 
        setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
 
     title.setFont(new java.awt.Font("Comic Sans MS", 1, 15));
        title.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        title.setText("^ Select Your Seats ^");
        add(title);
        title.setBounds(280, 10, 210, 30);
 
        add(jSeparator1);
        jSeparator1.setBounds(20, 40, 740, 10);
 
        stageScreen.setBackground(java.awt.Color.cyan);
        stageScreen.setFont(new java.awt.Font("Tahoma", 0, 12));
        stageScreen.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        stageScreen.setText("Stage");
        stageScreen.setToolTipText("Stage / Screen");
        stageScreen.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        stageScreen.setOpaque(true);
        add(stageScreen);
        stageScreen.setBounds(180, 50, 410, 30);
 
blueBox.setBorder(javax.swing.BorderFactory.createEtchedBorder());
blueBox.setOpaque(true);
blueBox.setBackground(Color.blue);
add(blueBox);
blueBox.setBounds(15,430,15,15);
 
greenBox.setBorder(javax.swing.BorderFactory.createEtchedBorder());
greenBox.setOpaque(true);
greenBox.setBackground(Color.green);
add(greenBox);
greenBox.setBounds(15,450,15,15);
 
blueExp.setText("Seat Reserved");
blueExp.setFont(new java.awt.Font("Tahoma", 0, 12));
add(blueExp);
blueExp.setBounds(35, 430, 100, 15);
 
greenExp.setText("Seat Available");
greenExp.setFont(new java.awt.Font("Tahoma", 0, 12));
add(greenExp);
greenExp.setBounds(35, 450, 100, 15);
 
sp.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        sp.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
 
p.setLayout(null);
p.setPreferredSize(new Dimension(780,690));
 
final JLabel[] labels= new JLabel[900];
 
for(int i=0; i< labels.length; i++)
{
final int j=i;
 
labels[j]= new JLabel();
 
String nameofSeat = String.valueOf(i);
 
labels[j].setName(nameofSeat);
 
 
labels[j].setBorder(javax.swing.BorderFactory.createEtchedBorder());
labels[j].setOpaque(true);
 
 
 
p.add(labels[j]);
 
if(i==10 || i==20 || i==40 || i==50 || i==70 || i==80 || i==100 || i==110 || i==130 || i==140 || i==160 || i==170 || i==190 || i==200 || i==220 || i==230 || i==250 || i==260 || i==280 || i==290 || i==310 || i==320 || i==340 || i==350 || i==370 || i==380 || i==400 || i==410 || i==430 || i==440 || i==460 || i==470 || i==490 || i==500 || i==520 || i==530 || i==550 || i==560 || i==580 || i==590 || i==610 || i==620 || i==640 || i==650 || i==670 || i==680 || i==700 || i==710 || i==730 || i==740 || i==760 || i==770 || i==790 || i==800 || i==820 || i==830 || i==850 || i==860 || i==880 || i==890)
{
 
x+=40;
labels[j].setBounds(x ,y, 15,15);
test=false;
}
else if(i==30 || i==60 || i==90 || i==120 || i==150 || i==180 || i==210 || i==240 || i==270 || i==300 || i==330 || i==360 || i==390 || i==420 || i==480 || i==510 || i==540 || i==570 || i==600 || i==630 || i==660 || i==690 || i==720 || i==750 || i==780 || i==810 || i==840 || i==870 )
{
x=60;
y+=20;
labels[j].setBounds(x, y, 15,15);
test=false;
}
else if(i==450)
{
x=60;
y+=40;
labels[j].setBounds(x,y,15,15);
test=false;
}
else if(true)
{
x+=20;
labels[j].setBounds(x,y,15,15);
}
 
test=true;
 
 
}    // end for loop
 
//--------------------------------------------------------------------------------------
//   get the name of the seat, compare to text file. if match, setbackgroun blue,
//   set background as green.
 
backgroundColor();
//------------------------------------------------------------------------------------
sp.setViewportView(p);
add(sp);
sp.setBounds(10,90,800,330);
 
    }
 
public void backgroundColor()
{
 
Component[] com= p.getComponents();
 
for(int y=0; y<com.length; y++)
{
final JLabel lab= (JLabel)com[y];
 
try{
BufferedReader br=new BufferedReader(new FileReader("SeatNumber.txt"));
 
while((output=br.readLine())!= null)
{
int z= Integer.parseInt(output);
z-=1;
String ou= String.valueOf(z);
 
if((lab.getName()).equals(ou))
{
lab.setBackground(java.awt.Color.blue);
break;
}
else{
lab.setBackground(java.awt.Color.green);
lab.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
boxMouseClicked(evt, lab);
}
public void mouseEntered(java.awt.event.MouseEvent evt) {
boxMouseEntered(evt);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
boxMouseExited(evt);
}
        });
 
 
}  // end else
 
}   // end while
 
}  // end try
catch(java.io.IOException e){
System.out.println("Cannot retrieve from SeatNumber.txt");
 
}  // end catch
 
}  // end for loop
 
}
private void boxMouseClicked(java.awt.event.MouseEvent evt, JLabel la) {
 
if(evt.getClickCount()>=2)
{
la.setBackground(java.awt.Color.green);
count = count - 1;
}
else {
la.setBackground(java.awt.Color.red);
arr[count]= la.getName();
count= count + 1;
 
}
 
 
    }
 
  private void boxMouseExited(java.awt.event.MouseEvent evt) {
        setCursor(java.awt.Cursor.getDefaultCursor());
 
    }
 
    private void boxMouseEntered(java.awt.event.MouseEvent evt) {
        setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.HAND_CURSOR));
 
    }
 
public void saveSeat()
{
 
try{
 
 
for(int i=0; i<arr.length; i++)
{
if(arr[i]!= null){
int h= Integer.parseInt(arr[i]);
h+=1;
 
String text = String.valueOf(h);
 
 
BufferedWriter bw= new BufferedWriter(new FileWriter("seatNumber.txt", true));
 
 
 
bw.write(text);
bw.newLine();
 
bw.close();
 
}
}  // end for
 
}catch(java.io.IOException e){
System.out.println("blablablablabla");
 
}   // end catch
 
 
 
}  // end saveSeat
 
 
 
  JLabel title;// title of the panel
  JLabel stageScreen;
JPanel p;            // insided panel
JScrollPane sp;
    JSeparator jSeparator1;
JLabel blueBox;
JLabel greenBox;
JLabel blueExp;
JLabel greenExp;
 
String output=null;
int x=40;
int y=20;
boolean test=true;
static int count = 0;
String[] arr = new String[900];
 
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class theatre extends javax.swing.JFrame implements ActionListener{
 
    public theatre() {
        initComponents();
    }
 
    private void initComponents() {
 
timeLabel=new JLabel();
    sysLabel = new javax.swing.JLabel();
//btnCon = new JButton();
btnConfirm = new JButton();
menuBar = new javax.swing.JMenuBar();
    fileMenu = new javax.swing.JMenu();
   connectM = new javax.swing.JMenuItem();
    exitM = new javax.swing.JMenuItem();
optionMenu = new JMenu();
custM= new JMenuItem();
custMenu = new JMenu();
oneCustM = new JMenuItem();
otherMenu = new JMenu();
aboutM = new JMenuItem();
 
plaf= "javax.swing.plaf.metal.MetalLookAndFeel";
 
try{
UIManager.setLookAndFeel(plaf);
SwingUtilities.updateComponentTreeUI(theatre.this);
}
catch(Exception e){ e.printStackTrace(); }
 
        getContentPane().setLayout(null);
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("eBook Entry");
setResizable(false);
        sysLabel.setFont(new java.awt.Font("Century Gothic", 1, 36));
        sysLabel.setForeground(java.awt.Color.magenta);
        sysLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        sysLabel.setText("eBook Theatre System");
        sysLabel.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
        getContentPane().add(sysLabel);
        sysLabel.setBounds(300, 10, 430, 60);
 
/*btnCon.setFont(new java.awt.Font("Tahoma", 1, 12));
btnCon.setText("Next");
getContentPane().add(btnCon);
        btnCon.setBounds(600, 620, 100, 30);
btnCon.addActionListener(this);
*/
btnConfirm.setFont(new java.awt.Font("Tahoma", 1, 12));
btnConfirm.setText("Confirm");
getContentPane().add(btnConfirm);
        btnConfirm.setBounds(600, 620, 100, 30);
btnConfirm.addActionListener(this);
 
//file menu set up and have 2 item inside : Connect and Exit.
fileMenu.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
    fileMenu.setBorderPainted(true);
fileMenu.setFont(new java.awt.Font("Arial", 0, 18));
   fileMenu.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
   fileMenu.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
fileMenu.setText("File");
fileMenu.setPreferredSize(new java.awt.Dimension(78, 27));
 
fileMenu.add(connectM);
fileMenu.addSeparator();
fileMenu.add(exitM);
 
    connectM.setText("Sign In As...");
connectM.addActionListener(this);
 
exitM.setText("Exit");
exitM.addActionListener(this);
 
// set up Options menu and add Customer menuItem into it.
optionMenu.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
    optionMenu.setBorderPainted(true);
optionMenu.setFont(new java.awt.Font("Arial", 0, 18));
optionMenu.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
   optionMenu.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
optionMenu.setText("Options");
optionMenu.setPreferredSize(new java.awt.Dimension(85, 27));
 
custM.setText("All Customers Reservation");
custM.addActionListener(this);
 
custMenu.setText("Search ... ");
custMenu.add(oneCustM);
 
oneCustM.setText("Search by One");
oneCustM.addActionListener(this);
 
optionMenu.add(custM);
optionMenu.addSeparator();
optionMenu.add(custMenu);
 
// Set up the Other menu and other menu item.
otherMenu.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
    otherMenu.setBorderPainted(true);
otherMenu.setFont(new java.awt.Font("Arial", 0, 18));
otherMenu.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
   otherMenu.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
otherMenu.setText("Others");
otherMenu.setPreferredSize(new java.awt.Dimension(83,27));
 
otherMenu.add(aboutM);
 
aboutM.setText("About...");
aboutM.addActionListener(this);
// ----------------------------------------
 
menuBar.setMaximumSize(new java.awt.Dimension(0, 50));
    menuBar.setPreferredSize(new java.awt.Dimension(0, 45));
 
 
    menuBar.add(fileMenu);
menuBar.add(optionMenu);
menuBar.add(otherMenu);
 
setJMenuBar(menuBar);
 
        pack();
setSize(1024,740);
    }
 
public void addSeatPanel()
{
 
seatp = new SeatPanel();
getContentPane().add(seatp);
seatp.setBounds(170,78,850,500);
 
}
 
 
public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==connectM)
{
 
}
if(ae.getSource()==exitM)
{
System.exit(0);
}
if(ae.getSource()==custM)
{
 
}
if(ae.getSource()==aboutM)
{
 
}
if(ae.getSource()==oneCustM)
{
 
}
 
if(ae.getSource()==btnConfirm)
{
seatp.saveSeat();
}
}
 
private JLabel timeLabel;
private javax.swing.JLabel sysLabel;
private javax.swing.JMenuBar menuBar;
     private javax.swing.JMenuItem connectM;
    private javax.swing.JMenuItem exitM;
    private javax.swing.JMenu fileMenu;
private JMenu optionMenu;
private JMenuItem custM;
private JMenu custMenu;
private JMenuItem oneCustM;
private JMenu otherMenu;
private JMenuItem aboutM;
//private JButton btnCon;
private JButton btnConfirm;
private SeatPanel seatp;
private String plaf;
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class eBook
{
private static theatre th;
 
 
public static void main(String[] args)
{
 java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                th = new theatre();
th.addSeatPanel();
th.setVisible(true);
            }
        });
 
}
}

here is the txt file:
seatNumber.txt

1                 // name of the 1st label
6                 // name of 6th label
7                // name of 7th label
11                // name of 11st label
10               // name of 10th label
                 // empty line because in code i call bw.newLine()

[ October 17, 2006: Message edited by: Nicky Eng ]

[Michael Dunn]

I think the basis of you program should be a class called Seat (extends JLabel).
your program can then interact with 'seat' variables (whatever you want to include)

here's a simple demo.
click a square - turns red, click it again - reverts to green.
click confirm - any red turns to blue.

    
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Testing
{
  Seat[] seats = new Seat[900];//<-----instead of JLabels
  public void buildGUI()
  {
    JFrame f = new JFrame();
    JPanel p = new JPanel(new GridLayout(30,30));
    SeatListener sl = new SeatListener();
    for(int x = 0, y = seats.length; x < y; x++)
    {
      seats[x] = new Seat(x);
      seats[x].addMouseListener(sl);
      p.add(seats[x]);
    }
    JPanel p1 = new JPanel();
    JButton btn = new JButton("Confirm");
    p1.add(btn);
    f.getContentPane().add(p,BorderLayout.CENTER);
    f.getContentPane().add(p1,BorderLayout.SOUTH);
    f.pack();
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
    btn.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent ae){
        for(int x = 0, y = seats.length; x < y; x++)
        {
          if(seats[x].getBackground() == Color.RED)
          {
            seats[x].setBackground(Color.BLUE);
            seats[x].reserved = true;
          }
        }
      }
    });
  }
  public static void main(String[] args)
  {
    EventQueue.invokeLater(new Runnable(){
      public void run(){
        new Testing().buildGUI();
      }
    });
  }
}
class SeatListener extends MouseAdapter
{
  public void mousePressed(MouseEvent me)
  {
    Seat s = (Seat)me.getSource();
    if(s.reserved == false)
    {
      if(s.getBackground() == Color.GREEN) s.setBackground(Color.RED);
      else s.setBackground(Color.GREEN);
    }
  }
}
class Seat extends JLabel
{
  int seatNumber;
  boolean reserved = false;
  public Seat(int sn)
  {
    seatNumber = sn;
    setBackground(Color.GREEN);
    setPreferredSize(new Dimension(15,15));
    setOpaque(true);
    setBorder(BorderFactory.createLineBorder(Color.BLACK));
  }
}

[Nicky Eng]

its good. but i need to retrieve from a text file, that's a requirement for my project.

yahooo...my problem 1 has been solved. i just need to cut this:

lab.addMouseListener(new java.awt.event.MouseAdapter() {        public void mouseClicked(java.awt.event.MouseEvent evt) {
boxMouseClicked(evt, lab);
}
public void mouseEntered(java.awt.event.MouseEvent evt) {
boxMouseEntered(evt);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
boxMouseExited(evt);
}
});

and paste to :

if(lab.getBackground() != Color.BLUE)
{
   // past it here....
}

and i been forgot to close the bufferedReader b4 catch statement.

Tonite i will look at the problem 2.
[ October 18, 2006: Message edited by: Nicky Eng ]

[Nicky Eng]

esp thanks to Micheal.
helped me lot.