java.lang.NumberFormatException: For input string: "r" /* I typed in 9 - r*/

Coderanch | Buda young | 3 years ago
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Root Cause Analysis

  1. java.lang.NumberFormatException

    For input string: "r" /* I typed in 9 - r*/

    at java.lang.NumberFormatException.forInputString()
  2. Java RT
    Integer.parseInt
    1. java.lang.NumberFormatException.forInputString(Unknown Source)
    2. java.lang.Integer.parseInt(Unknown Source)
    3. java.lang.Integer.parseInt(Unknown Source)
    3 frames
  3. NFE2
    Calculator.main
    1. NFE2.Calculator.main(Calculator.java:19)
    1 frame