Nested classes and GUI integration

Question

I have a GUI class called ArenaHelperGUI and an ArenaHelperRunner that's supposed to store the data taken from the text fields in the GUI and later do some calculations on it. The GUI is nested within the runner, but it can't do anything to the runner's variables, or call its functions.
Here's the runner:
package arenahelper;
* @author Greg
public class ArenaHelperRunner {
    ArenaHelperGUI gui;
    String args[];
    String[] oneTwo;
    String[] fourFive;
    String[] sixSeven;
    String[] nineTen;
    String[] elevenTwelve;
    String[] fourteenFifteen;
    String[] sixteenSeventeen;
    String[] nineteenTwenty;
    ArenaHelperRunner()
        gui = new ArenaHelperGUI();
        gui.main(args);
        oneTwo = new String[4];
        fourFive = new String[4];
        sixSeven = new String[4];
        nineTen = new String[4];
        elevenTwelve = new String[4];
        fourteenFifteen = new String[4];
        sixteenSeventeen = new String[4];
        nineteenTwenty = new String[4];
    public void test()
        System.out.println("TEST");
} The GUI was generated by Netbeans, and it's supposed to interact with the variables in the runner when one of the buttons is pressed:
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        test();
        System.out.println(oneTwo[0]);
    } The call to test and println both give "cannot find symbol".
If anyone knows how to fix this or can suggest a better way to implement it, I'll be very grateful =)

Answer 1

farshmak wrote:
I have a GUI class called ArenaHelperGUI and an ArenaHelperRunner that's supposed to store the data taken from the text fields in the GUI and later do some calculations on it. The GUI is nested within the runner, but it can't do anything to the runner's variables, or call its functions.
ArenaHelperRunner()
gui = new ArenaHelperGUI();
gui.main(args);
oneTwo = new String[4];
fourFive = new String[4];
sixSeven = new String[4];
nineTen = new String[4];
elevenTwelve = new String[4];
fourteenFifteen = new String[4];
sixteenSeventeen = new String[4];
nineteenTwenty = new String[4];
}Spot the magic number. I suggest setting a variable size = 4 and initializing each array to size. It will make your code more elegant and easier to maintain.
The call to test and println both give "cannot find symbol".Its good to separate the GUI and logic however you can't call a non static method from Class A within Class B without instantiating an instance of Class A first.
e.g. within Class B
ArenaHelperRunner runner = new ArenaHelperRunner();
runner.test();Mel