Any alternative to calling getGraphics() which is returning null

by

Don’t use getGraphics(). Any painting you do will be temporary and will be lost the next time Swing determines a component needs to be repainted.

Instead override the paintComponent() method of a JComponent or JPanel to do your custom painting. See Custom Painting for more details and examples.

More Related Contents:

  1. Draw a circle with a radius and points around the edge
  2. How to draw in JPanel? (Swing/graphics Java)
  3. Changing JPanel Graphics g color drawing line
  4. The Use of Multiple JFrames: Good or Bad Practice? [closed]
  5. Add a complex image in the panel, with buttons around it in one customized user interface
  6. Java Look and Feel (L&F) [closed]
  7. How to set a background picture in JPanel
  8. Swing rendering appears broken in JDK 1.8, correct in JDK 1.7
  9. JTable not showing up on JFrame (Java)
  10. Custom button not working on mac (ButtonUI)
  11. Nice looking progress bar in java
  12. JTable disable Checkbox in Cell
  13. Text-mouseover popups over a Swing JTextArea?
  14. Variable Layout in Swing
  15. JProgressBar won’t update
  16. How do I get which JRadioButton is selected from a ButtonGroup
  17. How to provide pagination support to a JTable in Swing?
  18. How to stop repeated keyPressed() / keyReleased() events in Swing
  19. Delayed response to JTable row selection event under a huge data load
  20. How to get location of a mouse click relative to a swing window
  21. How to get all elements inside a JFrame?
  22. Can anyone recommend a Java rich text editor? [closed]
  23. Rotate JLabel or ImageIcon on Java Swing
  24. Limited selection in a JTextField/JTextComponent?
  25. Java JFrame .setSize(x, y) not working?
  26. Java – How to hook into the Copy and Paste menu on the Mac OS
  27. Font Awesome with Swing
  28. SwingWorker ProgressBar
  29. Let ActionListener listen for change in JTextField instead of only enter?
  30. How to set a custom object in a JTable row

Leave a Comment