Static main methods and run()

Question

I am having trouble with main methods, and how to structure code, im not 100% sure on what static methods are, and im not sure how to use it when calling other methods etc cos its static and stuff - i read that i should put stuff in the constructor - but im not sure how this will work with a run()
I have written a program to draw some objects (just an oval at a certain position)
anyway here is the main method:
public static void main(String[] args) {
        // TODO code application logic here
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                Main game = new Main();
                game.createAndShowGUI();
                //Create some graphics objects at the desired position!
                GOA[0] = new GraphicsObject(300,200);         *
                GOA[1] = new GraphicsObject(350,200);         *
                game.frame.updateGraphics(GOA);            *
    }I am getting "non-static variable GOA cannot be referenced from a static context" at * i cant just make everything static, how should this be structured? where should the run() be?
Thanks for any help

Answer 1

Ok, i might as well include the whole thing - its not too big , and i would like to see if any of it is right really.
ackage joefootball2;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferStrategy;
public class Main {
    GameWindow frame;
    //Create the graphics object array to pass to the painting stuff
    GraphicsObject[] GOA;
    private void createAndShowGUI() {
        //Create and set up the window.
        frame = new GameWindow();
        frame.DrawWindow();
    public static void main(String[] args) {
        // TODO code application logic here
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                Main game = new Main();
                game.createAndShowGUI();
                //Create some graphics objects!
                GOA[0] = new GraphicsObject(300,200);
                GOA[1] = new GraphicsObject(350,200);
                game.frame.updateGraphics(GOA);
class GameWindow extends JFrame
    DrawPanel canvas;
    public void updateGraphics(GraphicsObject[] GOA)
        canvas.updateObjects(GOA);
    public void DrawWindow()
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        canvas = new DrawPanel();
        canvas.setDoubleBuffered(true);
        this.getContentPane().add(canvas);
        this.setVisible(true);
        this.setSize(800, 600);
        this.setResizable(false);
class DrawPanel extends JPanel
    //Create the graphics object array to draw
    GraphicsObject[] GOA;
    public void updateObjects(GraphicsObject[] givenGOA)
        GOA=givenGOA;
    public void paint(Graphics g)
        for (int i=0 ; i<GOA.length ; i++)
            g.drawOval(GOA.x-5, GOA[i].x-5, 10, 10);
class GraphicsObject
//for now, just make the graphics object a point to draw a circle
int x; int y;
}thanks