How Can I access a file within that is part of my jpx

Question

The file is part of my JPX but I don't know how to access it.
I use the following code for images
ImageIcon backImage = new ImageIcon(OpeningUI.class.getResource("myImage.gif"));This doesn't work.with BufferReader because the constructor doesn't accept a URL
if I use this
BufferedReader input = new BufferedReader(new InputStreamReader(
            new FileInputStream("Agreement.txt")));I get this FileNotFoundException:
Agreement.txt (The system cannot find the file specified)
Please Help
thanks.

Answer 1

I'm getting a NullPointerException now.
Agreement.txt is definatly part of my JPX.
Here's the Code if it will help
private void readFile() throws FileNotFoundException, StreamCorruptedException, IOException    {
        BufferedReader input = new BufferedReader(new InputStreamReader(
            new FileInputStream(getClass().getResource("Agreement.txt").getFile())));
            //new FileInputStream("Agreement.txt")));
        //DataInputStream input = new DataInputStream(new FileInputStream("Agreement.txt"));
        boolean bEof = false;
        String sDisplay = "";
        do  {
            try {
                sDisplay += input.readLine();
                System.out.println(sDisplay);
            catch(EOFException eofe)  {
                bEof = true;
                System.out.println(eofe.getMessage());
            catch(IOException ioe)  {
                bEof = true;
                System.out.println(ioe.getMessage());
        }while(!bEof);
        txtAgreement.setText(sDisplay);
        input.close();
        System.out.println(sDisplay);
    }