Devendra Danny Ramdayal Devendra Danny Ramdayal - 28 days ago 22
Java Question

how do I make jfilechooser only accept .txt

I trying to save my contact in my table but filechosser always setit to all file.
is there way I can set it to accept .txt only and make it default or the only option.

savecontact.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser filesave = new JFileChooser();
int returnVal = filesave.showSaveDialog(Main.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
try {
File file = filesave.getSelectedFile();

PrintWriter os = new PrintWriter(file);
os.println("");
for (int col = 0; col < table.getColumnCount(); col++) {
os.print(table.getColumnName(col) + "\t");
}
os.println("");
os.println("");

for (int row = 0; row < table.getRowCount(); row++) {
for (int col = 0; col < table.getColumnCount(); col++) {
os.print(table.getColumnName(col));
os.print(": ");
os.println(table.getValueAt(row, col));
}
os.println("");
}
os.close();
System.out.println("Done!");
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
});

Answer

You need to add a filter:

JFileChooser jf = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter("TEXT FILES", "txt", "text");
jf.setFileFilter(filter);

Best regards.