java.lang.NullPointerException: This exception has no message.

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via Oracle Community by 807595, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at undefined.Arecord.fillspace(Arecord.java:123)
at undefined.Arecord.write(Arecord.java:104)
at undefined.StudentD.enterl(StudentD.java:122)
at undefined.StudentD.main(StudentD.java:50)

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