import java.io.File;
import java.io.IOException;
import java.util.Scanner;
import javax.swing.JFileChooser;

/**
   This program shows the first nine lines of a file that was
   selected with a file chooser.
*/
public class FileChooserDemo 
{
   public static void main(String[] args) throws IOException
   {
      JFileChooser chooser = new JFileChooser();
      Scanner in = null;
      if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION)
      {
         File selectedFile = chooser.getSelectedFile();
         in = new Scanner(selectedFile);
         int lineNumber = 1;
         final int MAX_LINES = 9;
         while (in.hasNextLine() && lineNumber <= MAX_LINES)
         {
            String line = in.nextLine();
            System.out.println(lineNumber + ": " + line);
            lineNumber++;
         }
         if (in.hasNextLine()) { System.out.println("..."); }
      }
   }
}