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

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via Coderanch by Roel De Nijs, 1 year ago
java.lang.NullPointerException:
at com.crazyzoo.animals.carnivore.Lion.toString(Lion.java:15)
at be.zoo.animals.Animal.(Animal.java:8)
at com.crazyzoo.animals.carnivore.Lion.(Lion.java:10)
at com.crazyzoo.CrazyZoo.main(CrazyZoo.java:8)

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