java.lang.NullPointerException

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  • JOptionPane.showOptionDialog
    via by Jacob Coddaire,
  • Bad code java with eclipse
    via Stack Overflow by Javier
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  • JOptionsPane.showOptionDialog
    via by Atrus Greyor,
    • java.lang.NullPointerException at javax.swing.plaf.basic.BasicOptionPaneUI.addButtonComponents(Unknown Source) at javax.swing.plaf.basic.BasicOptionPaneUI.createButtonArea(Unknown Source) at javax.swing.plaf.basic.BasicOptionPaneUI.installComponents(Unknown Source) at javax.swing.plaf.basic.BasicOptionPaneUI.installUI(Unknown Source) at javax.swing.JComponent.setUI(Unknown Source) at javax.swing.JOptionPane.setUI(Unknown Source) at javax.swing.JOptionPane.updateUI(Unknown Source) at javax.swing.JOptionPane.<init>(Unknown Source) at javax.swing.JOptionPane.showOptionDialog(Unknown Source) at Input.main(Input.java:60)
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