Java Utililty Methods JFileChooser

List of utility methods to do JFileChooser

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Description

The list of methods to do JFileChooser are organized into topic(s).

Method

StringselectDirectory(Component component, String name, File pathToUse)
select Directory 
JFileChooser chooser = new JFileChooser();
boolean useIndicated = pathToUse != null;
if (useIndicated && lastIndicatedPath == null) {
    lastIndicatedPath = pathToUse;
chooser.setCurrentDirectory(useIndicated ? lastIndicatedPath : lastChooserPath);
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int result = chooser.showDialog(component, name);
...
File[]selectedFiles(JFileChooser chooser)
Work around Java Bug 4437688 "JFileChooser.getSelectedFile() returns nothing when a file is selected" [Jon Aquino] 
return ((chooser.getSelectedFiles().length == 0) && (chooser.getSelectedFile() != null))
        ? new File[] { chooser.getSelectedFile() }
        : chooser.getSelectedFiles();
StringselectFile(boolean exitOnCancel)
Opens up a dialog box asking the user to select a file. 
String fileName = null;
JFileChooser fc = new JFileChooser();
int returnVal = fc.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
    fileName = fc.getSelectedFile().getAbsolutePath();
} else if (exitOnCancel) {
    System.exit(0);
return fileName;
FileselectFile(Component parent, boolean isOpen)
select File 
JFileChooser chooser = new JFileChooser();
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
int option = isOpen ? chooser.showOpenDialog(parent) : chooser.showSaveDialog(parent);
if (option != JFileChooser.APPROVE_OPTION)
    return null;
java.io.File folder = chooser.getSelectedFile();
if (folder == null)
    return null;
...
FileselectFile(String msg, File dir, FileFilter filterOrNull)
Pick a file. 
if (!isInteractive()) {
    return null;
JFileChooser fc = new JFileChooser();
fc.setCurrentDirectory(dir);
fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
int ok = fc.showDialog(null, msg);
if (ok == JFileChooser.APPROVE_OPTION) {
...
FileselectFileForOpen(final Component parent, final FileFilter[] fileFilters, final String title, final FileFilter[] selectedFilters, final File initFile)
select File For Open 
JFileChooser chooser = new JFileChooser();
chooser.setMultiSelectionEnabled(false);
chooser.setDragEnabled(false);
chooser.setControlButtonsAreShown(true);
chooser.setDialogType(JFileChooser.OPEN_DIALOG);
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
for (final FileFilter fileFilter : fileFilters) {
    chooser.addChoosableFileFilter(fileFilter);
...
StringselectNonExistingFile(Component parent, String extensionWanted)
select Non Existing File 
String forReturn = null;
final String endWith = extensionWanted;
JFileChooser chooser = new JFileChooser(lastChooserPath);
chooser.setFileFilter(new FileFilter() {
    @Override
    public boolean accept(File file) {
        String filename = file.getName();
        return (filename.endsWith(endWith) || file.isDirectory());
...
voidsetCurrentDirectory(JFileChooser fileChooser, String location)
set Current Directory 
if (pointsToFile(location))
    location = location.substring(0, location.lastIndexOf("\\"));
File dir = new File(location);
if (dir.exists())
    fileChooser.setCurrentDirectory(dir);
voidsetFile(File file, JFileChooser chooser)
Set JFileChooser so it will always make the best of going to the location of the input file (whether its a file or directory) 
if (file == null) {
    return;
if (file.exists() == false && file.isFile()) {
    file = file.getParentFile();
if (file.exists()) {
    if (file.isFile()) {
...
voidsetFileChooserFilters(JFileChooser fileDlg, String filters, int selectIndex)
set File Chooser Filters 
if (fileDlg == null) {
    throw new IllegalArgumentException("fileDlg");
FileFilter selectFilter = null;
String[] filterParts = filters.split("[|]", -1);
int filtersNum = filterParts.length / 2;
for (int i = 0; i < filtersNum; i++) {
    int idx = i * 2;
...