java.lang.NullPointerException

Coderanch | Henry Wong | 2 years ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at Calculator.<init>()
    2. Unknown
      Calculator.main
      1. Calculator.<init>(Calculator.java:81)
      2. Calculator.main(Calculator.java:100)
      2 frames