How do I save it as .txt?

Question

First thing first here is my code I'm playing with.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.Component.*;
import java.awt.datatransfer.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.filechooser.*;
import javax.swing.filechooser.FileFilter;
public class ExploitExtreme extends JFrame implements ClipboardOwner,ItemListener,ActionListener,MenuListener
  ExploitExtreme()
       super("Exploit Extreme");
     JPopupMenu popup=new JPopupMenu();
     JMenuItem copied=new JMenuItem("Copy");
     JMenuItem pasted=new JMenuItem("Paste");
     JMenuItem delete=new JMenuItem("Clear");
     JTextArea source=new JTextArea(20,50);
  JScrollPane scroll= new JScrollPane(source,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
     JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
     JLabel statusinfo=new JLabel();
     final JFileChooser fc = new JFileChooser();
     JMenuBar menu=new JMenuBar();
     JMenu file=new JMenu("File");
     JMenu options=new JMenu("Options");
     JMenu help=new JMenu("Help");
     //options submenus
     JMenu suboption=new JMenu("More Options..");
     JMenuItem more=new JMenuItem("So I lied");
     JMenuItem tut=new JMenuItem("Tutorial");
     public void init()
       BorderLayout bl=new BorderLayout();
    Container contentArea=getContentPane();
    contentArea.setLayout(bl);
    setVisible(true);
    contentArea.setBackground(Color.red);
    contentArea.add("North",menu);
          contentArea.add("Center",scroll);
          contentArea.add("South",statusinfo);
          menu.add(file);
          menu.add(options);
          menu.add(help);
          //files submenus
          file.add(new AbstractAction("Open")
      public void actionPerformed(ActionEvent event)
                 doOpenCommand();
          file.addSeparator();
          file.add(new AbstractAction("Save As...")
      public void actionPerformed(ActionEvent event)
                 doSaveCommand();
          file.addSeparator();
       file.add(new AbstractAction("Exit")
      public void actionPerformed(ActionEvent event)
        System.exit(0);
          options.add(suboption);
          suboption.add(more);
          help.add(new AbstractAction("About")
            public void actionPerformed(ActionEvent event)
                 JOptionPane. showMessageDialog(null,"Exploit Extreme by Davearia");
          help.addSeparator();
          help.add(new AbstractAction("Tutorial")
      public void actionPerformed(ActionEvent event)
        JOptionPane.showMessageDialog(null,"Here is where I will put together a Tut for this app!");
          //popup.add(copied);
          popup.add(pasted);
          popup.add(delete);
          MouseListener popuplistener=new PopupListener();
          source.addMouseListener(popuplistener);
          copied.addActionListener(this);
          pasted.addActionListener(this);
          delete.addActionListener(this);
     public void menuSelected(MenuEvent evt)
     public void menuDeselected(MenuEvent evt)
     public void menuCanceled(MenuEvent evt)
     public void doOpenCommand()
       FileDialog fd=new FileDialog(ExploitExtreme.this,"Open File",FileDialog.LOAD);
          //fd.setFile("*.java;*.txt");
          fd.show();
          String curfile;
          if((curfile=fd.getFile())!=null)
            String filename=fd.getDirectory()+curfile;
               char[]d;
               setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
               File f=new File(filename);
               try
                 FileReader fr=new FileReader(f);
                    int filesize=(int)f.length();
                    d=new char[filesize];
                    fr.read(d,0,filesize);
                    source.setText(new String(d));
                    statusinfo.setText("Loaded: "+filename);
               catch(FileNotFoundException exc)
                 statusinfo.setText("File Not Found: "+filename);
               catch(IOException exc)
                 statusinfo.setText("IOException: "+filename);
               setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
     public void doSaveCommand()
       FileDialog f=new FileDialog(ExploitExtreme.this,"Save File",FileDialog.SAVE);
          f.show();
          String curfile;
          if((curfile=f.getFile())!=null)
            String filename=f.getDirectory()+curfile+"1";
               setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
               File fi=new File(filename);
               try
                 FileWriter fw=new FileWriter(fi);
                    String text=source.getText();
                    int textsize=text.length();
                    fw.write(source.getText(),0,textsize);
                    fw.close();
                    statusinfo.setText("Saved: "+filename);
               catch(IOException exc)
                 statusinfo.setText("IOException: "+ filename);
               setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
     public void actionPerformed(ActionEvent e)
       if(e.getSource()==delete)
            source.setText("");
       if(e.getSource()==copied)
            copy();
       if(e.getSource()==pasted)
            paste();
     public void copy()
       String s = source.getText();                 
       StringSelection ss = new StringSelection(s);
       this.getToolkit().getSystemClipboard().setContents(ss, this);
       source.selectAll();
     public void paste()
    Clipboard c = this.getToolkit().getSystemClipboard();
       Transferable t = c.getContents(this);
       try
         if (t.isDataFlavorSupported(DataFlavor.stringFlavor))
              String s = (String) t.getTransferData(DataFlavor.stringFlavor);
              source.setText(s);
         else if (t.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
              java.util.List files = (java.util.List)
              t.getTransferData(DataFlavor.javaFileListFlavor);
              java.io.File file = (java.io.File)files.get(0);
              source.setText(file.getName());
       catch (Exception e)
         this.getToolkit().beep();
  public void itemStateChanged(ItemEvent e)
  public void lostOwnership(Clipboard c, Transferable t)
     class PopupListener extends MouseAdapter
    public void mousePressed(MouseEvent e)
       maybeShowPopup(e);
    public void mouseReleased(MouseEvent e)
      maybeShowPopup(e);
    private void maybeShowPopup(MouseEvent e)
      if (e.isPopupTrigger())
        popup.show(e.getComponent(),
        e.getX(), e.getY());
  public static void main(String args[])
       ExploitExtreme ee=new ExploitExtreme();
       ee.init();
       ee.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    ee.setContentPane( ee.getContentPane() );
    ee.setSize(800,600);
    ee.addWindowListener(new java.awt.event.WindowAdapter()
      public void windowClosing(java.awt.event.WindowEvent evt)
        System.exit(0);
    ee.show();
}Sorry it's long winded,the problem I have is that when I save in this app the file is not a text file, so it's a struggle to open it. I need some way of altering my code so the files are saved as .txt files.I believe that the FileFilter class does something similar to this, what is my best bet?

Answer 1

In doSaveCommand(); you wrote
String filename = f.getDirectory() + curfile + "1";
Why don't you append ".txt" ?
It should work with something like
String filename = f.getDirectory() + curfile + "1.txt";