What is NullpointerException in java?

#learnwithkrishnasandeep #javacodinginterviewquestions #javaexamples #javaprograms #javatutorials #javaprogramming nullpointerexception in java example,
nullpointerexception in java array,
nullpointerexception in java example program,
nullpointerexception in java,
nullpointerexception in java how to fix,
nullpointerexception in java api,
null pointer exception in java object array,
what is nullpointerexception in java and how to handle it,
what is a null pointer exception in java,
example of a null pointer exception in java

[shubhk]

sir in database connectivity nullpointerexception occur,
then how to solve this problem