如何在 Java 中使用操作系统的默认文件选择器（在 Linux 和 Windows 中）

Question

I want to use the file chooser of the operating system from java.

I am currently using JFileChooser but that looks ancient!

I saw this question: How to use the default File Chooser for the operating system? java

But there are problems with that!

I have tried:

try {
    
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}catch(Exception ex) {
    ex.printStackTrace();
}

No difference!

I tried using JFileDialog but firstly as far as i have read on the internet it is better to avoid awt until you have a very good reason to use it(according to https://stackoverflow.com/a/21279145/14911094 ) and also i feel some features that JFileChooser has awt hasn't(or i am not aware of it yet!)

Like i want to only allow user to select directories but not quite possible in FileDialog(or i don't know it)

And moreover the question i linked is quite old so i guess there is a new way to do it now?

I current am using JFileChooser here is a piece of code that will help you reproduce what i have now:

import javax.swing.*;
import javax.swing.event.*;

import java.awt.*;
import java.awt.event.*;

public class Try{
    public static void main(String[] args) {
        try {
            
           UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception e) {
    }
    JFileChooser fileChooser = new JFileChooser();
    fileChooser.setDialogTitle("Choose directory");    
    fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    fileChooser.addActionListener(new MyActionListener());
    fileChooser.showOpenDialog(new JFrame());
    }
}

class MyActionListener implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent actionEvent) {
        switch (actionEvent.getActionCommand()){
            case "ApproveSelection":{
                // DO SOMETHING
                break;
            }
            case "CancelSelection":{
                // DO SOMETHING
                break;
            }
        }
    }
}

Answer 1

So, I could not doscover why is setLookAndFeel is not working for me!

But i have got a solution to the problem!

So, here is the code:

import java.util.*;
import java.io.*;
import java.awt.*;

public class Try2{
    public static void main(String[] args) throws Exception{
        Process p = Runtime.getRuntime().exec("zenity --file-selection --directory");
        Scanner sc = new Scanner(p.getInputStream());
        System.out.println("-----------------------------------");
        while (sc.hasNextLine()) {
            System.out.println(sc.nextLine());
        }
        System.out.println("-----------------------------------");
    }
}

This is the closest to what i want