Write a java program to accept directory name in TextField and display list of files and subdirectories in List Control from that directory by clicking on Button.

 

Write a java program to accept directory name in TextField and display list of files and subdirectories in List Control from that directory by clicking on Button.

import javax.swing.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

 

public class DirectoryLister extends JFrame {

    private JTextField directoryField;

    private JButton listButton;

    private JList<String> fileList;

 

    public DirectoryLister() {

        setTitle("Directory Lister");

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setSize(400, 400);

 

        directoryField = new JTextField();

        listButton = new JButton("List Directory");

        fileList = new JList<>();

 

        listButton.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                listDirectoryContents();

            }

        });

 

        JPanel panel = new JPanel();

        panel.add(new JLabel("Directory: "));

        panel.add(directoryField);

        panel.add(listButton);

 

        JScrollPane scrollPane = new JScrollPane(fileList);

 

        add(panel, "North");

        add(scrollPane, "Center");

    }

 

    private void listDirectoryContents() {

        String directoryPath = directoryField.getText();

        File directory = new File(directoryPath);

 

        if (directory.exists() && directory.isDirectory()) {

            String[] contents = directory.list();

            fileList.setListData(contents);

        } else {

            fileList.setListData(new String[] { "Directory not found." });

        }

    }

 

    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                DirectoryLister directoryLister = new DirectoryLister();

                directoryLister.setVisible(true);

            }

        });

    }

}