Choosing a folder destination in Java?

Question

I am new to Java. I am trying to dynamically select a file location to save the results of my project (to begin with at the very beginning of my project). I have worked with several FileDialog examples, but each of them allows me to select a file, not a folder.

Can someone help me with an example (or) link to one for the same?

Answer 1

You can try something like this (as shown here: Select a directory using JFileChooser ):

import javax.swing.*; import java.awt.event.*; import java.awt.*; import java.util.*; public class DemoJFileChooser extends JPanel implements ActionListener { JButton go; JFileChooser chooser; String choosertitle; public DemoJFileChooser() { go = new JButton("Do it"); go.addActionListener(this); add(go); } public void actionPerformed(ActionEvent e) { chooser = new JFileChooser(); chooser.setCurrentDirectory(new java.io.File(".")); chooser.setDialogTitle(choosertitle); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); // // disable the "All files" option. // chooser.setAcceptAllFileFilterUsed(false); // if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) { System.out.println("getCurrentDirectory(): " + chooser.getCurrentDirectory()); System.out.println("getSelectedFile() : " + chooser.getSelectedFile()); } else { System.out.println("No Selection "); } } public Dimension getPreferredSize(){ return new Dimension(200, 200); } public static void main(String s[]) { JFrame frame = new JFrame(""); DemoJFileChooser panel = new DemoJFileChooser(); frame.addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } } ); frame.getContentPane().add(panel,"Center"); frame.setSize(panel.getPreferredSize()); frame.setVisible(true); } } 

Answer 2

Java Oracles File Selection Tutorial: http://docs.oracle.com/javase/tutorial/uiswing/components/filechooser.html

Note getSelectedFile() returns the selected folder, despite the name. getCurrentDirectory() returns the directory of the selected folder.

 import javax.swing.*; public class Example { public static void main(String[] args) { JFileChooser f = new JFileChooser(); f.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); f.showSaveDialog(null); System.out.println(f.getCurrentDirectory()); System.out.println(f.getSelectedFile()); } } 

Answer 3

try something like this

 JFileChooser chooser = new JFileChooser(); chooser.setCurrentDirectory(new java.io.File(".")); chooser.setDialogTitle("select folder"); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); chooser.setAcceptAllFileFilterUsed(false); 

Answer 4

Along with JFileChooser, you can use this:

 UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); 

to look and feel like windows.

for other settings, see here: https://docs.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html#available