Mega Code Archive
A simple file chooser to see what it takes to make one of these work
<![CDATA[
/*
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly
*/
//SimpleFileChooser.java
//A simple file chooser to see what it takes to make one of these work.
//
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class SimpleFileChooser extends JFrame {
public SimpleFileChooser() {
super("File Chooser Test Frame");
setSize(350, 200);
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container c = getContentPane();
c.setLayout(new FlowLayout());
JButton openButton = new JButton("Open");
JButton saveButton = new JButton("Save");
JButton dirButton = new JButton("Pick Dir");
final JLabel statusbar =
new JLabel("Output of your selection will go here");
// Create a file chooser that opens up as an Open dialog
openButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser chooser = new JFileChooser();
chooser.setMultiSelectionEnabled(true);
int option = chooser.showOpenDialog(SimpleFileChooser.this);
if (option == JFileChooser.APPROVE_OPTION) {
File[] sf = chooser.getSelectedFiles();
String filelist = "nothing";
if (sf.length > 0) filelist = sf[0].getName();
for (int i = 1; i < sf.length; i++) {
filelist += ", " + sf[i].getName();
}
statusbar.setText("You chose " + filelist);
}
else {
statusbar.setText("You canceled.");
}
}
});
// Create a file chooser that opens up as a Save dialog
saveButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser chooser = new JFileChooser();
int option = chooser.showSaveDialog(SimpleFileChooser.this);
if (option == JFileChooser.APPROVE_OPTION) {
statusbar.setText("You saved " + ((chooser.getSelectedFile()!=null)?
chooser.getSelectedFile().getName():"nothing"));
}
else {
statusbar.setText("You canceled.");
}
}
});
// Create a file chooser that allows you to pick a directory
// rather than a file
dirButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser chooser = new JFileChooser();
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int option = chooser.showOpenDialog(SimpleFileChooser.this);
if (option == JFileChooser.APPROVE_OPTION) {
statusbar.setText("You opened " + ((chooser.getSelectedFile()!=null)?
chooser.getSelectedFile().getName():"nothing"));
}
else {
statusbar.setText("You canceled.");
}
}
});
c.add(openButton);
c.add(saveButton);
c.add(dirButton);
c.add(statusbar);
}
public static void main(String args[]) {
SimpleFileChooser sfc = new SimpleFileChooser();
sfc.setVisible(true);
}
}
]]>