FileNameExtensionFilter
class won't allow you to filter with empty extensions. So, create your own FileFilter
.
FileFilter filterWithoutExtension = new FileFilter() {
@Override
public boolean accept(File f) {
// This will display only the files without "."
return !f.getName().contains(".");
}
@Override
public String getDescription() {
return "Files Without Extension";
}
};
Then set this one as your FileFilter
.
myFileChooser.setFileFilter(filterWithoutExtension);