java.lang.NullPointerException

Stack Overflow | Reddish | 6 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at GradesGUI_2.init()
  2. Unknown
    GradesGUI_2.main
    1. GradesGUI_2.init(GradesGUI_2.java:59)
    2. GradesGUI_2.<init>(GradesGUI_2.java:40)
    3. GradesGUI_2.main(GradesGUI_2.java:20)
    3 frames