I am a newbie to Java. I am trying to dynamically choose the file location to save the outcome of my project (to be initiated at the very start of my project). I worked around with a few FileDialog examples, but each one of them allows me to choose a file and not a folder.
Can anyone please help me with an example (or) link to one for the same?
You could try something like this (as shown here: Select a Directory with a 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);
}
}
I found a good example of what you need in this link.
import javax.swing.JFileChooser;
public class Main {
public static void main(String s[]) {
JFileChooser chooser = new JFileChooser();
chooser.setCurrentDirectory(new java.io.File("."));
chooser.setDialogTitle("choosertitle");
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
chooser.setAcceptAllFileFilterUsed(false);
if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
System.out.println("getCurrentDirectory(): " + chooser.getCurrentDirectory());
System.out.println("getSelectedFile() : " + chooser.getSelectedFile());
} else {
System.out.println("No Selection ");
}
}
}
Oracles Java Tutorial for File Choosers: 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());
}
}
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);
Along with JFileChooser is possible use this:
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
for have a Look and Feel like Windows.
for others settings, view here: https://docs.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html#available
Source: Stackoverflow.com