JFileChooser.getAcceptAllFileFilter() has the following syntax.
public FileFilter getAcceptAllFileFilter()
In the following code shows how to use JFileChooser.getAcceptAllFileFilter() method.
//from ww w . j a va 2 s. c o m import java.io.File; import javax.swing.JFileChooser; import javax.swing.filechooser.FileFilter; public class Main { public static void main(String[] argv) throws Exception { JFileChooser chooser = new JFileChooser(); File f = new File(new File(".").getCanonicalPath()); chooser.setCurrentDirectory(f); chooser.setCurrentDirectory(null); chooser.showOpenDialog(null); FileFilter obj = chooser.getAcceptAllFileFilter(); } }