JFileChooser opening with showSaveDialog

Question

Hello!
I have a problem. I want to save a file so I 've created a JFileChooser which opens in the showSaveDialog mode. My problem is how can I have the name of the file predefined so that the user will only choose the directory in which he wants to save the file?
Thanks in advance!

Answer 1

Ok I sussed it.
If this is for a class please definitely make sure you add comments attributing where you got this code from.
package tjacobs.util;
import java.awt.Component;
import java.awt.Container;
import java.awt.TextComponent;
import javax.swing.JFileChooser;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.JTextComponent;
public class ComponentMapper {
     public static interface MappedFunc {
          public void func(Component c);
     public static void map(Component c, MappedFunc func) {
          func.func(c);
          if (c instanceof Container) {
               Container con = (Container)c;
               int count = con.getComponentCount();
               for (int i = 0; i < count; i++) {
                    map(con.getComponent(i), func);
     public static void main(String[] args) {
          JFileChooser fc = new JFileChooser();
          MappedFunc mf = new MappedFunc() {
               public void func(Component c) {
                    if (c instanceof JTextComponent) {
                         System.out.println("found");
                         final JTextField tf = ((JTextField)c);
                         tf.setEditable(false);
                         tf.getDocument().addDocumentListener(new DocumentListener() {
                              public void insertUpdate(DocumentEvent de) {
                                   Runnable r = new Runnable() {
                                        public void run() {
                                             tf.setText("");
                                   SwingUtilities.invokeLater(r);
                              public void removeUpdate(DocumentEvent de) {
                              public void changedUpdate(DocumentEvent de) {
                         while (c != null) {
                              System.out.println(c.getClass());
                              c = c.getParent();
                         //disable the textfield
          map(fc, mf);
          fc.showSaveDialog(null);
}