How to read files....plzzz

Hi! All,
I have a problem in reading files using jfilechooser class.
when i select open menuitem from the file menu and reading it through
the file reader class it is giving nullpointer exception.
Also i tried by hardcoding filename in filereader class instead of using getSelectedfile().This time it is not giving null pointer exception but it is showing any stuff.
Here's the code i am using...
int returnVal = fc.showOpenDialog(openpanel);
if(returnVal == JFileChooser.APPROVE_OPTION){
file = fc.getSelectedFile();
               //This is where a real application would open the file.
if(fc == null)
     file = new File("D:\\karthik\\java\\");
     file = new File("D:\\karthik\\java\\kar.txt");
     fc.setCurrentDirectory(file);
BufferedReader infile = new BufferedReader(new FileReader(file));
     files.append(infile.readline()); //files is the textarea..

how come you do a fc.setCurrentDirectory(file);?
where exactly do you get the NullPointerException? what does your stacktrace say?
thomas

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