java.lang.NullPointerException

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  • JSlider is not working.
    via by Hui Zhao,
  • JSlider is not working.
    via by Hui Zhao,
    • java.lang.NullPointerException at Combox.addComponent(Combox.java:146) at Combox.access$600(Combox.java:27) at Combox$getComboPanel.<init>(Combox.java:97) at Combox.init(Combox.java:52) at Combox.main(Combox.java:290)
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