import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.io.*;
class DeleteThroughJFileChooser extends JFrame
{
JButton jb;
JFileChooser jf;
File[] selectedFiles;
public DeleteThroughJFileChooser()
{
// Create and show GUI
createAndShowGUI();
}
private void createAndShowGUI()
{
// Set frame properties
setTitle("Delete through JFileChooser");
setLayout(new FlowLayout());
setSize(400,400);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
// Create JFileChooser
jf=new JFileChooser();
// Allow multiple selection
jf.setMultiSelectionEnabled(true);
// Create JButton
jb=new JButton("Open JFileChooser");
// Add ActionListener to it
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae)
{
// Show the file chooser
showFileChooser();
}
});
// Register the delete action
registerDelAction();
// Add JButton jb to JFrame
add(jb);
}
private void showFileChooser()
{
// Show the open dialog
int op=jf.showOpenDialog(this);
}
private void registerDelAction()
{
// Create AbstractAction
// It is an implementation of javax.swing.Action
AbstractAction a=new AbstractAction(){
// Write the handler
public void actionPerformed(ActionEvent ae)
{
JFileChooser jf=(JFileChooser)ae.getSource();
try
{
// Get the selected files
selectedFiles=jf.getSelectedFiles();
// If some file is selected
if(selectedFiles!=null)
{
// If user confirms to delete
if(askConfirm()==JOptionPane.YES_OPTION)
{
// Call Files.delete(), if any kasus occurs
// the exception can be printed, it can be
// analysed
for(File f:selectedFiles)
java.nio.file.Files.delete(f.toPath());
// Rescan the directory after deletion
jf.rescanCurrentDirectory();
}
}
}catch(Exception e){
System.out.println(e);
}
}
};
// Get action map and map, "delAction" with a
jf.getActionMap().put("delAction",a);
// Get input map when jf is in focused window and put a keystroke DELETE
// associate the key stroke (DELETE) (here) with "delAction"
jf.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("DELETE"),"delAction");
}
public int askConfirm()
{
// Ask the user whether he/she wants to confirm deleting
// Return the option chosen by the user either YES/NO
return JOptionPane.showConfirmDialog(this,"Are you sure want to delete this file?","Confirm",JOptionPane.YES_NO_OPTION);
}
public static void main(String args[])
{
SwingUtilities.invokeLater(new Runnable(){
public void run()
{
new DeleteThroughJFileChooser();
}
});
}
}
Also see my post on Adding custom components to JFileChooser and example on AWT FileDialog
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