Finding the end of a file.

Question

How do I find the end of a stream (in this case, a file) using BufferedReader.readLine()?

Answer 1

<code>
public class SectorParser1 {
    // Declare variables that will be used
    Scanner sectorScannerIn;        // This is used in the setFileLocation method
    String sectorLocation;          // This is the abs location of the sector
    String currentIn;
    BufferedReader myParser;        // This is the top-level parser that reads
                                    // through the sct file.
    Scanner mySectorScanner;        // This is the second-level parser that
                                    // reads through the sct file.
    BufferedReader myReader;
    // Define constructors for SectorParser1
    public SectorParser1() {
    }   // CLOSE THE SectorParser1() CONSTRUCTOR
    SectorParser1(String sectorLocation) {
        this.sectorLocation = sectorLocation;
    }   // CLOSE THE SectorParser1(String sectorLocation) CONSTRUCTOR
    // Define methods for SectorParser1
    public void setFileLocation() {
        System.out.print("Please enter the exact path to your sector file: ");
        sectorScannerIn = new Scanner(System.in);
        sectorLocation = sectorScannerIn.next();
    }   // CLOSE THE setFileLocation() METHOD
    public String getFileLocation() {
        return sectorLocation;
    }   // CLOSE THE getFileLocation() METHOD
    public int beginParsing() throws IOException {
        myReader = new BufferedReader(new FileReader(sectorLocation));
        boolean cond = true;
        int counter = 0;
        try{ while(cond) {
            currentIn = myReader.readLine();
            if(currentIn.equals("null")){
                break;
            }else if(currentIn.startsWith(";")) { // Lines in the file that's
                continue;                         // being read that start with
            } {                                   // a ';' are comments, and
                counter++;                        // need to be ignored.
            System.out.println(currentIn);
        } } catch (NullPointerException e) {
            System.err.println("Caught NullPointerException.");
        myReader.close();
        return counter;
}       // CLOSE THE SectorParsing1 CLASS </code>