Java Swing jCombobox to jList using button

source code : github.com/Nuubkid/Java-activ...

[@vasiiceeek]

package aplikace;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.ComponentInputMap;
import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.ListCellRenderer;
import javax.swing.ScrollPaneConstants;
import javax.swing.border.LineBorder;
import java.awt.Color;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Scanner;
public class vysledky {
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame okno = new JFrame("Aplikace");
okno.setLayout(null);
okno.getContentPane().setBackground(Color.DARK_GRAY);

final JTextField text = new JTextField();
text.setBounds(150, 250, 500, 80); // nastavení pozice a velikosti textového pole
text.setBorder(new LineBorder(Color.green, 5));
okno.add(text);

ImageIcon imageIcon = new ImageIcon("C:\\Users\\uzivatel\\Desktop\\logo.png");

JLabel label = new JLabel();
label.setIcon(imageIcon);
label.setBounds(280, 100, 350, 80);

final JFileChooser fileChooser = new JFileChooser();
final JButton vytvor = new JButton("Zápas");
vytvor.setBounds(20, 370, 150, 60);
vytvor.setVisible(true);
vytvor.setLayout(null);
vytvor.setOpaque(true);
vytvor.setBackground(Color.white);
vytvor.setForeground(Color.DARK_GRAY);
vytvor.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
int returnValue = fileChooser.showSaveDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
try (BufferedWriter writer = new BufferedWriter(new FileWriter(file,true))) {
String zapas = text.getText();
String vysledek = vytvor.getText();
String zapis = zapas + " - " + " ";
writer.write(zapis);
writer.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
final JButton id = new JButton("Výsledek");
id.setBounds(220, 370, 150, 60);
id.setVisible(true);
id.setLayout(null);
id.setOpaque(true);
id.setBackground(Color.white);
id.setForeground(Color.DARK_GRAY);
id.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
int returnValue = fileChooser.showSaveDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
try (BufferedWriter writer = new BufferedWriter(new FileWriter(file,true))) {
String zapas = text.getText();
String vysledek = id.getText();
String zapis = zapas ;
writer.write(zapis + "
");
writer.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
final JList list = new JList();
list.setVisible(false);

JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(570,20, 200, 200);
scrollPane.setViewportView(list);
scrollPane.setVisible(false); // nastavíme neviditelnost zpočátku
JButton zapis = new JButton("Najít zápas");
zapis.setBounds(420, 370, 150, 60);
zapis.setVisible(true);
zapis.setLayout(null);
zapis.setOpaque(true);
zapis.setBackground(Color.white);
zapis.setForeground(Color.DARK_GRAY);
zapis.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
scrollPane.setViewportView(list);
scrollPane.setVisible(true);
DefaultListModel model = new DefaultListModel();
try {
File file = new File("C:\\Users\\uzivatel\\Desktop\\Prg.txt");
Scanner scanner = new Scanner(file);
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
model.addElement(line);
}
scanner.close();
// Vytvoření nového JListu s daty
JList newList = new JList(model);
newList.setBorder(BorderFactory.createEmptyBorder());
newList.addListSelectionListener(e -> {
if (!e.getValueIsAdjusting()) {
String selectedValue = newList.getSelectedValue();
text.setText(selectedValue);
}
});
// Nastavení nového JListu jako datový model JScrollPane
scrollPane.setViewportView(newList);
scrollPane.setVisible(true);
list.setVisible(true); // nastavit viditelnost JList na true
okno.add(scrollPane);
okno.revalidate();
okno.repaint();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
});
JButton zavrit = new JButton("Zavřít");
zavrit.setBounds(620, 370, 150, 60);
zavrit.setVisible(true);
zavrit.setBackground(Color.white);
zavrit.setForeground(Color.DARK_GRAY);
zavrit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
JOptionPane.showMessageDialog(null, "Stránka se zavírá");
System.exit(0);
}
});
okno.add(zapis);
okno.add(zavrit);


okno.add(scrollPane);
okno.pack();
okno.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
okno.setSize(800, 600);
okno.setVisible(true);
okno.add(label);
okno.add(zavrit);
okno.add(zapis);
okno.add(id);
okno.add(vytvor);
}
}