java.lang.NullPointerException

Coderanch | Brandon Choate | 8 years ago
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    Need to make a lock. Having trouble getting it to open.

    Coderanch | 8 years ago | Brandon Choate
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at CombinationLock.unlock()
    2. Unknown
      CombinationLockTest.main
      1. CombinationLock.unlock(CombinationLock.java:36)
      2. CombinationLockTest.main(CombinationLockTest.java:26)
      2 frames