Putting a Jlabel in a specific place in JPanel

Hi,
I have created a JApplet where I fill it up with some JPanels. Inside a JPanel i want to put some Jlabels on a specific place. However, it doesn't work.
Whenever i try to put a setLayout(null), the application doesn't show my modifications. If don't use this command, the modification are loaded.
I don't know what happes with this layout. Is it a problem of layout or a problem of JPanel references?
          canvas = new AVLTreeAnimation();
          //canvas.setLayout(null);
          JLabel label = new JLabel("trestadf");
          label.setLocation(10, 10);
          canvas.add(label);
          canvas.setBorder(new TitledBorder(null,"AVL-Tree Animation",
                    TitledBorder.LEFT, TitledBorder.TOP));
          canvas.repaint();
          return canvas;thanks for your help

man, this same problem's come up a lot this week.
If you set the layout to null, you have to set the size and the location, not just the location. All components have a size of 0 x 0 initially.

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Putting a Jlabel in a specific place in JPanel

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