java.lang.NullPointerException

Coderanch | hany hashemi | 8 years ago
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  1. 0

    A problem adding a row in JTable using a button...

    Coderanch | 8 years ago | hany hashemi
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at gui.TableFromDatabase.addNewRow()
    2. gui
      TableFromDatabase$1.actionPerformed
      1. gui.TableFromDatabase.addNewRow(TableFromDatabase.java:119)
      2. gui.TableFromDatabase.btInsActionPerformed(TableFromDatabase.java:101)
      3. gui.TableFromDatabase.access$000(TableFromDatabase.java:12)
      4. gui.TableFromDatabase$1.actionPerformed(TableFromDatabase.java:88)
      4 frames
    3. Java RT
      EventDispatchThread.run
      1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
      2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
      3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
      4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
      5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
      6. java.awt.Component.processMouseEvent(Component.java:6041)
      7. javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
      8. java.awt.Component.processEvent(Component.java:5806)
      9. java.awt.Container.processEvent(Container.java:2058)
      10. java.awt.Component.dispatchEventImpl(Component.java:4413)
      11. java.awt.Container.dispatchEventImpl(Container.java:2116)
      12. java.awt.Component.dispatchEvent(Component.java:4243)
      13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
      14. java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
      15. java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
      16. java.awt.Container.dispatchEventImpl(Container.java:2102)
      17. java.awt.Window.dispatchEventImpl(Window.java:2440)
      18. java.awt.Component.dispatchEvent(Component.java:4243)
      19. java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
      20. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
      21. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
      22. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
      23. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
      24. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
      25. java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
      25 frames