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

ListretrieveFilesFromDir(File basedir, FileFilter filter)
retrieve Files From Dir 
return retrieveFilesFromDir(basedir, filter, true, false);
Filerun_file_chooser(String file_desc, String extension)
rufilchooser 
JFileChooser chooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter(file_desc, extension);
chooser.setFileFilter(filter);
int ret_val = chooser.showOpenDialog(null);
if (ret_val == JFileChooser.APPROVE_OPTION) {
    return chooser.getSelectedFile();
} else {
    return null;
...
voidsave(JFileChooser fileChooser, Runnable action)
save 
if (fileChooser.showSaveDialog(null) == JFileChooser.APPROVE_OPTION) {
    action.run();
FilesaveFile(Component parent, File defaultFile)
Open save file dialog and return the selected fie. 
JFileChooser chooser = new JFileChooser();
if (defaultFile != null) {
    chooser.setSelectedFile(defaultFile);
if (chooser.showSaveDialog(parent) == JFileChooser.APPROVE_OPTION) {
    return chooser.getSelectedFile();
return null;
...
FilesaveFile(String title, File currentDir, javax.swing.filechooser.FileFilter filter)
Open a javax.swing.JFileChooser which can be used to save a new file, and return the path to the new file, or null if closed or cancelled. 
JFileChooser fileChooser = new JFileChooser();
fileChooser.setCurrentDirectory(currentDir);
fileChooser.setDialogTitle(title);
fileChooser.setMultiSelectionEnabled(false);
fileChooser.setFileFilter(filter);
int result = fileChooser.showSaveDialog(null);
if (result == JFileChooser.APPROVE_OPTION) {
    return fileChooser.getSelectedFile();
...
StringsaveObject(final Object content, final String description, final String extension, final File file)
Saves a file with a file chooser 
final JFileChooser fileChooser = new JFileChooser();
final FileNameExtensionFilter langFilter = new FileNameExtensionFilter(description, extension);
fileChooser.setFileFilter(langFilter);
fileChooser.setSelectedFile(file);
String path = "";
try {
    if (fileChooser.showSaveDialog(null) == JFileChooser.APPROVE_OPTION) {
        path = fileChooser.getSelectedFile().getAbsolutePath();
...
File[]saveSystemFiles(Component owner)
Consistent way to chosing multiple files to save with JFileChooser. 
JFileChooser jfc = new JFileChooser();
jfc.setFileHidingEnabled(true);
jfc.setMultiSelectionEnabled(true);
int result = jfc.showSaveDialog(owner);
if (result == JFileChooser.APPROVE_OPTION) {
    return jfc.getSelectedFiles();
return new File[0];
...
StringsaveToFile(Object obj)
save To File 
return saveToFile(toJson(obj));
Fileselect_file(Component parent, boolean show_save)
selecfile 
return select_file(parent, show_save, null);
voidselectAndSaveToFile(String content, Component parent)
Show dialog for selecting a file and write file content to file 
@SuppressWarnings("serial")
JFileChooser fileSaveDialog = new JFileChooser() {
    @Override
    public void approveSelection() {
        File f = getSelectedFile();
        if (f.exists() && getDialogType() == SAVE_DIALOG) {
            int result = JOptionPane.showConfirmDialog(this, "File already exists, overwrite?",
                    "Existing file", JOptionPane.YES_NO_OPTION);
...