InputStream/BufferedReader with JTextArea

[Martin Clifford]

Hi again all!
I'm trying to find a way to open an ASCII .txt file, read it, then output it to a JTextArea component. I thought the following code would do the trick, but it doesn't do anything (at least that I can see):

 
BufferedReader in = new BufferedReader(new FileReader(fileName));
mainText.setText("");
temp = in.readLine();
while(temp != null) {
mainText.append(temp);
}

Anyone have any words of advice on this? I'm gonna go back to working on it, but look forward to hearing some opinions! )
I'm excited to almost have a working app now! It can save files, change font values, and all that stuff.
If anyone wants to see it when it's done, just let me know )
Adios, pardners.
[ December 06, 2002: Message edited by: Martin Clifford ]

[Paul Stevens]

Try changing your code to:

   while((temp = in.readLine()) != null) {
      mainText.append(temp);
   }

[ December 06, 2002: Message edited by: Paul Stevens ]

[Martin Clifford]

Nope, still nothing.
Right now, to get the filename, I'm just using this:

JFileChooser jfc = new JFileChooser();
  int returnVal = jfc.showOpenDialog(this);
  if(returnVal == JFileChooser.APPROVE_OPTION) {
    String fileName = jfc.getSelectedFile().getName();
  }

Now here's what might be wrong... it gets the filename, and that's all well and good, but I don't think that contains a pointer to the directory the file was chosen from. Could this be the reason? Back to work on it, thanks for the reply.

[Martin Clifford]

Well, I figured out that it was because the file path wasn't complete.
Now I have this:

String fileName = jfc.getSelectedFile().getName();
String pathName = jfc.getCurrentDirectory() + fileName;

The only problem with that is, that it only works on the C:\ drive, since if the file is in My Documents getCurrentDirectory() doesn't add root dirs to the path. Not only this, but readLine() doesn't seem to preserve newline chars, so I have to try another method of reading in the data.

[Jim Yingst]

JFileChooser's getSelectedFile() method returns a File object that already has all the info you need - just use that:

    File file = jfc.getSelectedFile();
    System.out.println("Selected: " + file.getAbsolutePath());
    Reader reader = new FileReader(file);

Calling additional methods like getFileName() just separates the filename info from the directory info - which is unnecessary, and the source of your current problems.