java.lang.NullPointerException

Exception #2598321

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  • via Unknown by John Herkess,
  • via Unknown by xiao sean,
  • Stack trace

    • java.lang.NullPointerException at Timetable.addCourseToTimeslot(Timetable.java:37) at Tester.doTheTesting(Tester.java:80) at Tester.main(Tester.java:9)

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