CODEWITHSUNDEEP
javaswingtextfile-iojlabel
Akarasu
Akarasu

Reputation: 45

Reading text from file and putting it to the JLabel

I want to change my JLabel when I click a JButton. It sounds simple but can't really find a good piece of code. Here is part of my code:

                    final JButton continueGame = new JButton();
                    continueGame.setPreferredSize(new Dimension(1000, 30)); 
                    continueGame.setLocation(95, 45);
                    continueGame.setText("<html>Continue</html>");
                    continueGame.addActionListener(new ActionListener(){
                        @Override
                        public void actionPerformed(ActionEvent ev) {
                            panel.remove(continueGame);
                            SwingUtilities.updateComponentTreeUI(frameKontrastGame);
                                if(RandomNrJeden <= 50)
                                {
                                    JOptionPane.showMessageDialog(frameKontrastGame, "Eggs are not supposed to be green.");
                                    frameKontrastGame.setVisible(false);

                                    JFrame frameScenario2 = new JFrame();
                                    frameScenario2.setTitle("Scenario2");
                                    frameScenario2.setSize(1000,700);
                                    frameScenario2.setLocationRelativeTo(null);
                                    frameScenario2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


                                    JPanel panelScenario = new JPanel ();
                                    panel.setLayout(new GridLayout(2, 1));




                                    final JLabel tekst = new JLabel ();
                                    tekst.setText("<html>Część dialogu numer 1</html>");
                                    //JTextField dialog = new JTextField(20);
                                    //dialog.setText("<html>Eggs are not supposed to be green.</html>");


                                    JButton OdpPierwsza = new JButton ();
                                    OdpPierwsza.setText("<html>Opowiedź pierwsza</html>");
                                    OdpPierwsza.addActionListener (new ActionListener(){
                                        @Override
                                        public void actionPerformed(ActionEvent ev) {
                                        tekst.setText("<html>HERE I NEED A TEXT FROM FILE dialog.txt</html>");


                                        }
                                        });


                                    //panelScenario.add(dialog);
                                    panelScenario.add(tekst);
                                    panelScenario.add(OdpPierwsza);
                                    frameScenario2.getContentPane().add(panelScenario);

                                    frameScenario2.setVisible(true);

                                }

(If the brackets are wrong that's because its not the whole code.)

So:

Upvotes: 2

Views: 4756

Answers (1)

marc3l
marc3l

Reputation: 2595

You can read your file into just one string using

BufferedReader br = new BufferedReader(new FileReader("your_file.txt"));
String line = br.readLine();
ArrayList<String> listOfStrings = new ArrayList<>();
listOfString.add(line);

while(line != null)
{
   line = br.readLine();
   listOfString.add(line);
}

And now do a for-loop to iterate over the JList and add text to the JLabel. Better is a JTextArea.

Upvotes: 1

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