Drawing in Java using Canvas

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Suggestions:

  • Don’t use Canvas as you shouldn’t mix AWT with Swing components unnecessarily.
  • Instead use a JPanel or JComponent.
  • Don’t get your Graphics object by calling getGraphics() on a component as the Graphics object obtained will be transient.
  • Draw in the JPanel’s paintComponent() method.
  • All this is well explained in several tutorials that are easily found. Why not read them first before trying to guess at this stuff?

Key tutorial links:

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