Creating a progress bar using BufferReader()

Question

Hi,
I was wondering if it was possible to count the number of bytes that BufferReader() has read. I doing that because I need it to calculate progress (to have a progress bar). This is what I'm doing.
private void createOutputFile() {
        String line;
        String [] temp = new String [21];
        try {
            FileReader fr = new FileReader(new File(openTF.getText()));
            FileWriter fw = new FileWriter(new File(saveTF.getText()));
            BufferedReader br = new BufferedReader(fr);
            BufferedWriter bw = new BufferedWriter(fw);
            while ((line = br.readLine()) != null) {
                temp = line.split("\\t");              
                if (temp.length > 18 && temp[18].length() > 0){
                    fw.write(temp[0] + "\t" + temp[18] + "\n");
            bw.close(); fw.close();
            br.close(); fr.close();
        catch (FileNotFoundException fN) {
            fN.printStackTrace();
        catch (IOException e) {
            System.out.println(e);
    }I know that I can do it using BufferedInputStream but due to the fact that I'm parsing each line of the file, I don't think I can do that because the length of each line is different (am I right?)
Thanks.
Desmond

Answer 1

the length of each line is different (am I right?)Probably. Just get the length of the each line your read and keep a running total.