import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class FileRead extends MainFrame
{
  Button open = new Button("Open");
  TextArea ta = new TextArea();

  public FileRead()
  {
    super("FileInputStream Demo");

    setLayout(new BorderLayout(5, 5));
    add(open, "South");
    add(ta,   "Center");
    ta.setFont(new Font("Courier", Font.PLAIN, 12));

    open.addActionListener(new Opener());

    show();
  }

  class Opener implements ActionListener
  {
    public void actionPerformed(ActionEvent ae)
    {
      FileDialog fd;
      fd = new FileDialog(MainFrame.this,
                          "Open",
                          FileDialog.LOAD);
      fd.setFile("*.html");
      fd.show();

      String fname = fd.getFile();
      String dname = fd.getDirectory();

      if (fname == null)
      {
        ta.append("File selection cancelled\n");
      }
      else
      {
        FileInputStream fis = null;
        try
        {
          fis = new FileInputStream(dname + fname);


/*          String text = "";

          int ch;
          while ((ch = fis.read()) != -1)
            text += (char) ch;
*/
          byte[] b = new byte[fis.available()];
          fis.read(b);
          String text = new String(b);
          ta.setText(text);
          ta.setCaretPosition(0);
        }
        catch (FileNotFoundException nf)
        {
          ta.append("Couldn't open " + dname + fname);
        }
        catch (IOException ioe)
        {
          ta.append("Error reading file");
        }
        finally
        {
          try
          {
            if (fis != null) fis.close();
          }
          catch (IOException ie) { }
        }
      }
    }
  }

  public static void main(String[] args)
  {
    new FileRead();
  }
}