java.lang.NullPointerException

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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.awt.Container.addImpl()
  2. Java RT
    Container.add
    1. java.awt.Container.addImpl(Container.java:1045)
    2. java.awt.Container.add(Container.java:365)
    2 frames
  3. Unknown
    temperatureConverter.main
    1. temperatureConverter.<init>(temperatureConverter.java:66)
    2. temperatureConverter.main(temperatureConverter.java:110)
    2 frames