Thread: When a button is clicked: get my Data!!!

Hey There..

I'm having a problem occurring within my code.

I have a txt file containing jibberish called testingfile.txt


testingfile.txt contains:

hithere34|where 293|21|3|9
heythere5|where 633|25|4|9
hellothere66|where 918|21|7|9

Now when the 'List' button is clicked I want it to just print in the console the data within the testingfile.txt (I want it to print out in the console so I know that it is being called).

I tried this but it keeps throwing an IOException.. :

    public myGrades() {
        initComponents();
 
        txtAreaActions number = new txtAreaActions();
        btnList.addActionListener(number);
 
    }
 
    public class txtAreaActions implements ActionListener {
 
        public void actionPerformed(ActionEvent e) {
            try {
                if (e.getSource() == btnList) {
                    Scanner scanner = new Scanner(new File("testingfile.txt"));
                    scanner.useDelimiter("\\|, \\s, ");
 
                    while (scanner.hasNextLine()) {
                        String s = scanner.next();
                        parseRecord(s);
                    }
 
                    scanner.close();
                }
            } catch (IOException error) {
                System.out.println("Error");
            }
        }
    }
 
    public void parseRecord(String record) {
        Scanner recIn = new Scanner(record);
        recIn.useDelimiter("\\|, \\s");
 
        String area1 = recIn.next();
        String area2 = recIn.next();
        int num1 = Integer.parseInt(recIn.next());
        int num2= Integer.parseInt(recIn.next());
        int num3 = Integer.parseInt(recIn.next());
 
        double total = (num1 / num2) * num3;
 
        System.out.println(area1 + area2);
        System.out.printf("%.2f%n", total);
    }

Any clues?

Thanks!

It might help if you obtain more information than merely "Error".

} catch (IOException error) {
    //System.out.println("Error");
    error.printStackTrace();
}

Got this:

java.io.FileNotFoundException: testingfile.txt (The system cannot find the file specified)

In fact you will have got a stack trace that indicates where the problem occured: I'm guessing in the line that initialised scanner.

You could check the full path of the file you are trying to open (there is a File method that returns this) before you inialise the scanner.

File file = new File("testingfile.txt");
System.out.println("Using " + file.xxx());
Scanner scanner = ...

(Sorry, I'm posting from my phone and it's too painful to look up the method name...)