Current java

package p1;

import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.SocketException;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JTextField;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;

public class OperaFTP{

    private static FTPClient client = new FTPClient();
    private static OperaFTP Operation = new OperaFTP();
    private static JLabel Cr;
    JFrame loginWindow = new JFrame("Login");
    private static JLabel wrong = new JLabel();

    public static void main(String[] args){
        Operation.firstWindow();

    }

    private void firstWindow(){

         JPanel loginPane = new JPanel(null);

         JLabel title;
         JLabel ftpMore;
         JLabel userName;
         JLabel passWord;

         JButton connect = new JButton("Connect");

        loginWindow.setDefaultCloseOperation(3);
        loginWindow.setSize(300, 340);
        loginWindow.setResizable(false);
        loginWindow.setLocationRelativeTo(null);

        loginWindow.add(loginPane);

        title = new JLabel("FTP LOGIN");
        title.setFont(new Font("Times New Roman", 1, 40));
        title.setForeground(Color.RED);
        title.setBounds(35, 6, 300, 60);
        loginPane.add(title);

        ftpMore = new JLabel("ftp://");
        ftpMore.setBounds(20, 76, 60, 30);
        ftpMore.setForeground(Color.BLUE);
        ftpMore.setFont(new Font("Times New Roman", 0, 16));
        loginPane.add(ftpMore);

        JTextField ftpIp = new JTextField();
        ftpIp.setBounds(50, 80, 190, 25);
        loginPane.add(ftpIp);

        userName = new JLabel("Username:");
        userName.setBounds(70, 115, 60, 30);
        userName.setFont(new Font("Times New Roman", 0, 14));
        loginPane.add(userName);

        JTextField userField = new JTextField();
        userField.setBounds(70, 140, 150, 25);
        loginPane.add(userField);

        passWord = new JLabel("Password:");
        passWord.setBounds(70, 175, 60, 30);
        passWord.setFont(new Font("Times New Roman", 0, 14));
        loginPane.add(passWord);

        JPasswordField passField = new JPasswordField();
        passField.setBounds(70, 200, 150, 25);
        loginPane.add(passField);

        connect.setBounds(75, 240, 140, 40);
        connect.setFont(new Font("Arial", 2, 18));
        loginPane.add(connect);

        Cr = new JLabel("Save credentials");
        Cr.setBounds(95, 280, 200, 30);
        loginPane.add(Cr);

        JCheckBox saveCr = new JCheckBox();
        saveCr.setBounds(75, 285, 20, 20);
        loginPane.add(saveCr);

        File ftpC = new File(System.getProperty("user.home") + "\\Documents\\FTPFILECREDIANTIALS.txt");

        String xx = null;
        String xx2 = null;
        String xx3 = null;
        if (ftpC.exists()){
          try{
            BufferedReader read = new BufferedReader(new FileReader(ftpC));

            xx = read.readLine();
            xx2 = read.readLine();
            xx3 = read.readLine();

            read.close();
          }
          catch (IOException e1){
            System.out.println("FILE NOT FOUND/CANT READ FROM FILE");
          }
        }

        ftpIp.setText(xx);
        userField.setText(xx2);
        passField.setText(xx3);

        saveCr.addItemListener(new ItemListener(){
          public void itemStateChanged(ItemEvent e){
            try{
              PrintWriter write = new PrintWriter(ftpC);

              write.println(ftpIp.getText());
              write.println(userField.getText());
              write.print(passField.getPassword());

              write.close();
            }
            catch (FileNotFoundException e1){
              System.out.println("FILE NOT FOUND:" + e1);
            }
          }
        });

        connect.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
            String user = null;
            String pass = null;
            String server = null;

            server = ftpIp.getText();
            user = userField.getText();
            char[] passs = passField.getPassword();
            pass = passs.toString();

            try{
                login(server, user, pass);
            } catch (IOException e1) {}

          }

        });

        loginWindow.setVisible(true);
    }

    public static void login(String server, String user, String pass) throws SocketException, IOException{
        client.connect(server, 21);
        client.login(user, pass);
        client.enterLocalPassiveMode();
        client.setFileType(FTP.BINARY_FILE_TYPE);

        boolean success = client.isConnected();

        if(success){
            frame();
        }else{

        }

    }

    public static void frame(){
        Operation.loginWindow.dispose();

        JFrame window = new JFrame();
        JPanel pane = new JPanel(null);

        DefaultListModel model = new DefaultListModel();

        window.setSize(700, 700);
        window.setResizable(false);
        window.setLocationRelativeTo(null);

        window.add(pane);

        JButton upload = new JButton("Upload");
        upload.setBounds(5, 5, 90, 30);
        upload.setFont(new Font("Arial", 0, 12));
        pane.add(upload);

        JButton download = new JButton("Download");
        download.setBounds(5, 40, 90, 30);
        download.setFont(new Font("Arial", 0, 12));
        pane.add(download);

        JButton delete = new JButton("Delete");
        delete.setBounds(5, 75, 90, 30);
        delete.setFont(new Font("Arial", 0, 12));
        pane.add(delete);

        String[] files = null;
        try
        {
          files = client.listNames();
          String[] arrayOfString1;
          int j = (arrayOfString1 = files).length;
          for (int i = 0; i < j; i++)
          {
            String item = arrayOfString1[i];
            model.addElement(item);
          }
        }
        catch (IOException localIOException) {}
        JList list = new JList(files);
        list.setSelectionMode(0);
        JScrollPane scroll = new JScrollPane(list);
        scroll.setBounds(110, 10, 560, 630);
        pane.add(scroll);

        final JLabel info = new JLabel();
        info.setBounds(10, 640, 700, 30);
        pane.add(info);
        if (client.isConnected()) {
          info.setText("Connected");
        }
        upload.addActionListener(new ActionListener()
        {
          public void actionPerformed(ActionEvent e)
          {
            JFileChooser fileChooser = new JFileChooser();

            fileChooser.setCurrentDirectory(new File(System.getProperty("user.home")));
            int result = fileChooser.showOpenDialog(new JDialog());
            if (result == 0) {
              try
              {
                client.setFileType(2);

                File selectedFile = fileChooser.getSelectedFile();

                String firstRemoteFile = selectedFile.getName();
                InputStream inputStream = new FileInputStream(selectedFile);

              //  ftpMore.setText("Uploading...");

                boolean done = client.storeFile(firstRemoteFile, inputStream);

                inputStream.close();
                if (!done) {
                  return;
                }
                //ftpMore.setText("File has been uploaded.");
                model.addElement(selectedFile.getName());
              }
              catch (IOException ex)
              {
                wrong.setText("ERROR: " + ex.getMessage());
              }
            } else {
              System.out.println("Cancelled");
            }
          }
        });

        download.addActionListener(new ActionListener(){
          public void actionPerformed(ActionEvent e){
            JFileChooser fileChooser = new JFileChooser();
           //fileChooser.setSelectedFile(new File(fileChooser.getSelectedValue()));
            fileChooser.setCurrentDirectory(new File(System.getProperty("user.home")));
            int result = fileChooser.showSaveDialog(new JDialog());
            if (result == 0){
              try{
                String getValue = model.toString();
                String remoteFile1 = getValue;

                File downloadFile1 = new File(fileChooser.getSelectedFile().getAbsolutePath());

                OutputStream outputStream1 = new BufferedOutputStream(new FileOutputStream(downloadFile1));

                info.setText("Downloading...");
                boolean success = client.retrieveFile(remoteFile1, outputStream1);
                outputStream1.close();
                if (!success) {
                  return;
                }
                info.setText("Complete");
              }
              catch (IOException ex)
              {
                info.setText("Error: " + ex);
              }
            } else {
              info.setText("Cancelled");
            }
          }
        });

        delete.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
            String deletef = model.toString();

            try{
              info.setText("Deleteing...");

              boolean deleted = client.deleteFile(deletef);
              if (deleted){
                info.setText("File has been deleted.");
                model.removeElement(deletef);
              }
            }

            catch (IOException ex){
              info.setText("ERROR: " + ex);
            }

          }
        });

        window.addWindowListener(new WindowAdapter(){
          public void windowClosing(WindowEvent windowEvent){
            try{
              client.disconnect();
              client.logout();
            }
            catch (IOException localIOException) {}
            System.exit(1);
          }
        });

        window.setVisible(true);

      }

}