arxel

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

public class okienko extends JFrame {

    public okienko(){
        super("okno");
        setLayout( new BorderLayout());

        String[] lista = { "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12" };
        String[] lista2 = { "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12" };

        //Tworzenie okienka
        final JTextField text = new JTextField(20);
        add( text, BorderLayout.NORTH);

        JPanel panel = new JPanel();
        panel.setLayout( new GridLayout(1,2));
        panel.add( new JLabel("Zapis"));
        panel.add( new JLabel("Odczyt"));
        add(panel, BorderLayout.CENTER);

        JPanel panel2 = new JPanel();
        panel2.setLayout( new GridLayout(1,2));
        final JComboBox zapisBox = new JComboBox(lista);



        //Zapis pliku
        zapisBox.addActionListener( new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                JFileChooser chooser = new JFileChooser();
                  if (chooser.showSaveDialog(okienko.this) != JFileChooser.APPROVE_OPTION)
                    return;
                  File file = chooser.getSelectedFile();
                  if (file == null)
                    return;

                  FileWriter writer = null;
                  try {
                    writer = new FileWriter(file);
                    text.write(writer);
                  } catch (IOException ex) {
                    JOptionPane.showMessageDialog(okienko.this,
                        "Plik nie zostal zapisany", "ERROR", JOptionPane.ERROR_MESSAGE);
                  } finally {
                    if (writer != null) {
                      try {
                        writer.close();
                      } catch (IOException x) {
                      }
                    }
                  }
            }
        });
        panel2.add( zapisBox);
        //Zapis pliku


        //Odczyt pliku
        final JComboBox odczytBox = new JComboBox(lista2);
        odczytBox.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                JFileChooser chooser = new JFileChooser();
                  if (chooser.showOpenDialog(okienko.this) != JFileChooser.APPROVE_OPTION)
                    return;
                  File file = chooser.getSelectedFile();
                  if (file == null)
                    return;

                  FileReader reader = null;
                  try {
                    reader = new FileReader(file);
                    text.read(reader, null);
                  } catch (IOException ex) {
                    JOptionPane.showMessageDialog(okienko.this,
                        "Brak pliku", "ERROR", JOptionPane.ERROR_MESSAGE);
                  } finally {
                    if (reader != null) {
                      try {
                        reader.close();
                      } catch (IOException x) {
                      }
                    }
                  }


            }
        });
        panel2.add( odczytBox);
        //Odczyt pliku


        add(panel2, BorderLayout.SOUTH);



        pack();
        setVisible(true);



    }

    public static void main(String[] args) {

        new okienko();

    }

}