Calculating the sum of values from a text file?

im trying to find the sum of the cost of all my books in my libary system from a file, could someone say where im going wrong atm. It would be great help

int sum = 0;
    File Fileobject = new File ("E:\text files for java\BooksToImport.txt");


    try {
        Scanner fileReader  = new Scanner (Fileobject);

        // Read and display each line of the file

        while(fileReader.hasNext())
        {
            sum+= fileReader.nextInt ( );
            line = fileReader.nextLine();
            System.out.println(line);
            System.out.println(sum);
        }       
            fileReader.close();