What Is Null Pointer Exception

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Learn what is null pointer exception in java programming and how to detect fix and prevent it See examples of common causes and scenarios for this A NullPointerException generally means there's a variable somewhere in your code that hasn't been initialized and you are trying to perform operations on.

What Is Null Pointer ExceptionNull pointer exception is a runtime exception. Null is a special kind of value that can be assigned to the reference of an object. Whenever one tries to use a reference that has. NullPointerException is a RuntimeException In Java a special null value can be assigned to an object reference NullPointerException is thrown when program