Java JFileChooser askForFile(String title, File rootDir)

Description

ask For File

License

Open Source License

Declaration

public static File askForFile(String title, File rootDir) 

Method Source Code

//package com.java2s;
/*/*from  w w w .j av  a 2 s  . c  om*/
 * Copyright (C) 2015 Christopher Collin Hall
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.File;
import java.util.Arrays;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;

public class Main {
    public static File askForFile(File rootDir) {
        JFileChooser jfc = new JFileChooser(rootDir);
        int action = jfc.showOpenDialog(null);
        if (action == JFileChooser.CANCEL_OPTION)
            return null;
        return jfc.getSelectedFile();
    }

    public static File askForFile(String title, File rootDir) {
        JFileChooser jfc = new JFileChooser(rootDir);
        jfc.setDialogTitle(title);
        int action = jfc.showOpenDialog(null);
        if (action == JFileChooser.CANCEL_OPTION)
            return null;
        return jfc.getSelectedFile();
    }

    public static File askForFile(File rootDir, String... allowedSuffixes) {
        final String[] suffixes = allowedSuffixes;
        final String description = Arrays.toString(suffixes);
        JFileChooser jfc = new JFileChooser(rootDir);
        jfc.setFileFilter(new FileFilter() {

            @Override
            public boolean accept(File f) {
                if (f.isDirectory())
                    return true;
                if (f.getName().contains(".") == false)
                    return false;
                String suffix = f.getName().substring(f.getName().lastIndexOf("."));
                for (String s : suffixes) {
                    if (suffix.equalsIgnoreCase(s))
                        return true;
                }
                return false;
            }

            @Override
            public String getDescription() {
                return description;
            }
        });
        int action = jfc.showOpenDialog(null);
        if (action == JFileChooser.CANCEL_OPTION)
            return null;
        return jfc.getSelectedFile();
    }
}

Related

1. askForFiles(File rootDir)
2. askForFolder(File rootDir)
3. askUserForFileURL(Component aParent, boolean bOpen)
4. browseFileForList(DefaultListModel listModel, JFileChooser fileChooser, Component parent)