AudioFilter.java Source code

Introduction

Here is the source code for AudioFilter.java

Source

import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;

class AudioFilter extends FileFilter {
    @Override
    public boolean accept(File f) {
        if (f.isDirectory()) {
            return true;
        }
        String extension = Utils.getExtension(f);
        if (extension != null) {
            if ((extension.equals(Utils.wav)) || (extension.equals(Utils.aif)) || (extension.equals(Utils.rmf))
                    || (extension.equals(Utils.au)) || (extension.equals(Utils.mid))) {
                return true;
            } else {
                return false;
            }
        }
        return false;
    }

    @Override
    public String getDescription() {
        return "wav, aif, rmf, au, mid";
    }

}

class Utils {
    public final static String wav = "wav";
    public final static String aif = "aif";
    public final static String rmf = "rmf";
    public final static String au = "au";
    public final static String mid = "mid";

    public static String getExtension(File f) {

        String ext = null;
        String s = f.getName();
        int i = s.lastIndexOf('.');
        if (i > 0 && i < s.length() - 1) {
            ext = s.substring(i + 1).toLowerCase();
        }
        return ext;

    }
}

public class Main {
    public static void main(String[] args) {
        AudioFilter audioFilter = new AudioFilter();

        JFileChooser jfc = new JFileChooser();

        jfc.setDialogTitle("Open File");
        jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
        jfc.setCurrentDirectory(new File("."));
        jfc.setFileFilter(audioFilter);
        int result = jfc.showOpenDialog(null);

        if (result == JFileChooser.CANCEL_OPTION) {
            System.out.println("cancel");
        } else if (result == JFileChooser.APPROVE_OPTION) {
            File fFile = jfc.getSelectedFile();
            String filestr = fFile.getAbsolutePath();

            System.out.println(filestr);
        }
    }
}