How to read data from .txt and update the status of button

[jian0203]

Can anyone help me with this coding ?
I got no clue on how to implement the function ~
It's a booking system, when someone click the "Seat 1" or so on. The "Seat 1" should be changed to "BOOKED" but when the constructor run for the second time , the "BOOKED" disappear and reset back to "Seat 1".
Can anyone help me to solve this ?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class FirstClassSeating extends JFrame{
private static final long serialVersionUID = 1L;
JButton fcButton[] = new JButton[20];
JButton returnButton = new JButton("RETURN");

JLabel titleLabel = new JLabel("First Class Seating");
JLabel aisleLabel = new JLabel("Aisle");

JPanel buttonPanelL = new JPanel();
JPanel buttonPanelR = new JPanel();
JPanel returnPanel = new JPanel();
JPanel titlePanel = new JPanel();
JPanel aislePanel = new JPanel();

public String str;
public int number;
public FirstClassSeating(){
setLayout(new BorderLayout());
setPreferredSize(new Dimension(450,450));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setTitle("First Class Seating");

//aisle

aisleLabel.setBorder(new javax.swing.border.EmptyBorder(new Insets(0, 0, 0, 0)));
aislePanel.add(aisleLabel);
getContentPane().add(aislePanel,BorderLayout.CENTE R);

//title
titlePanel.setBorder(new javax.swing.border.EtchedBorder());
titleLabel.setBorder(new javax.swing.border.EmptyBorder(new Insets(1, 1, 1, 1)));
titlePanel.add(titleLabel);
getContentPane().add(titlePanel,BorderLayout.NORTH );

//button panel
returnPanel.setLayout(new GridLayout(1,1,4,4));
returnPanel.setBorder(new javax.swing.border.EtchedBorder());
buttonPanelL.setLayout(new GridLayout(5,2,4,4));
buttonPanelL.setBorder(new javax.swing.border.EtchedBorder());
buttonPanelR.setLayout(new GridLayout(5,2,4,4));
buttonPanelR.setBorder(new javax.swing.border.EtchedBorder());

returnPanel.add(returnButton);
//buttons
for(int i=0; i<10; i++){
fcButton[i] = new JButton();
if(fcButton[i].getText() != "Booked"){
fcButton[i].setText("Seat"+(i+1));
buttonPanelL.add(fcButton[i]);
fcButton[i].addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
ButtonActionPerformed(e);
}
});
}
else{
fcButton[i].setText("Booked");
buttonPanelL.add(fcButton[i]);
fcButton[i].addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
ButtonActionPerformed(e);
}
});
}
}
for(int i=10; i<20; i++){
fcButton[i] = new JButton();
if(fcButton[i].getText() != "Booked"){
fcButton[i].setText("Seat"+(i+1));
buttonPanelR.add(fcButton[i]);
fcButton[i].addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
ButtonActionPerformed(e);
}
});
}
else{
fcButton[i].setText("Booked");
buttonPanelL.add(fcButton[i]);
fcButton[i].addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
ButtonActionPerformed(e);
}
});
}
}
getContentPane().add(buttonPanelL,BorderLayout.WES T);
getContentPane().add(buttonPanelR,BorderLayout.EAS T);
getContentPane().add(returnPanel,BorderLayout.SOUT H);

returnButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
returnButtonActionPerformed(e);
}
}
);

}

public void ButtonActionPerformed(ActionEvent e){
for(int i=0; i<20; i++){
if(e.getSource() == fcButton[i]){
str = fcButton[i].getText();
JOptionPane.showMessageDialog(null,"This is: "+str);

}
}

}

@SuppressWarnings("deprecation")
public void returnButtonActionPerformed(ActionEvent e){
this.hide();
ChooseClass cc = new ChooseClass();
cc.showAndDisplayGUI();
}


public void showAndDisplayGUI(){
FirstClassSeating fcs = new FirstClassSeating();
fcs.pack();
fcs.setVisible(true);
}

public static void main(String a[]){
FirstClassSeating fcs = new FirstClassSeating();
fcs.pack();
fcs.setVisible(true);
}
}

Thanks in advance.

[Fubarable]

Rather than download a whole program, please create a small compilable program that demonstrates your problem (an SSCCE), and then post the code in the forum with code tags. We're all volunteers and appreciate it when posters put in effort to simplify their problem and make it easier for us to solve. Luck.

[Tolls]

Also please use proper indentation. I suspect the forum blatted your code before you stuck the tags in.

I do question this though:

public void showAndDisplayGUI() {
    FirstClassSeating fcs = new FirstClassSeating();
    fcs.pack();
    fcs.setVisible(true);
}

[Fubarable]

Also please use proper indentation. I suspect the forum blatted your code before you stuck the tags in.

The problem is he posted the code in quote tags, not code tags.

To the OP, edit your original post and change the quote tags:
[quot&#101;]
//.... your code is here
[/quot&#101;]

to code tags:
[cod&#101;]
//.... your code is here
[/cod&#101;]

[Tolls]

Oh yes.
I didn't see that was a Quote box and not a Code box.