Java JFileChooser .showDialog (Component parent, String approveButtonText)

public int showDialog(Component parent,  String approveButtonText)  throws HeadlessException

//w w w  .  j  av  a 2  s.com
import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JFrame;

public class Main {
  public static void main(String[] argv) throws Exception{
    JFileChooser chooser = new JFileChooser();
    File f = new File(new File("filename.txt").getCanonicalPath());
    
    chooser.setSelectedFiles(new File[]{f});
    chooser.showDialog(new JFrame(""), null);
    File curFile = chooser.getSelectedFile();
  }
}