Draw line and shapes

Question

I have a small problem...cos i have like one class that extends JFrame but i have one JPanel on which i would like to draw some shapes...but i dont know how...cos i tried to rewrite paint method but it does not work...if someone would please post me a simple example...on how to do that...thnx

Answer 1

This is slightly barebones, but it should do. It also has some less relevant code. Here's my JFrame (or the interesting parts):
public class MainWindow
     extends JFrame
     private PaintLayout layout;//My custom Layout, not required
     private Container c;
     public MainWindow()
          //Bind the layout and Container c for future use
     layout = new PaintLayout();
     c = getContentPane();
     c.setLayout(layout);
//These are useful if you want to know what space is getting chopped out
     it = c.getInsets().top;
     ib = c.getInsets().bottom;
          il = c.getInsets().left;
          ir = c.getInsets().right;
     GameBoard board = new GameBoard();
layout.addLayoutComponent(board, 0+il, 0+it, 720, 480);//Custom add function for my custom Layout
c.add(board);//Very useful and important
Followed by the code of interest in my JPanel:
public class GameBoard
     extends JPanel
     implements MouseListener, MouseMotionListener
     public GameBoard()
          this.addMouseListener(this);
          this.addMouseMotionListener(this);
     public void paint(Graphics g)
g.setColor(new Color(0, 127, 0));
g.fillRect(0,0,this.getWidth(),this.getHeight());
     public void mouseClicked(MouseEvent arg0)
          int x = arg0.getX(), y = arg0.getY();
          System.out.print("X: "+x+" Y: "+y+"; X: "+x/10/12+"'"+(x/10)%12+"\" Y: "+y/10/12+"'"+(y/10)%12+"\";\n");
Have fun with that.