Null pointer exception

[parasmamgain]

valux x in file hello.java threw a null pointer exception

[git-guru-pm[bot]]

The line valux x in hello.java is throwing a NullPointerException. This means that the variable x is being accessed when it has a value of null.

To resolve this, you need to find the line where x is being used and ensure that it's assigned a non-null value before it's accessed.

Here are some potential causes and solutions:

Initialization: If x is a local variable, ensure it is initialized with a non-null value before it is used.
Null check: Before using x, check if it is null using the if (x != null) condition.
Dependency: If x is an object from another class, make sure the object is properly initialized and its methods are called correctly.

Here are some helpful resources for debugging NullPointerExceptions:

Java NullPointerException
* Debugging NullPointerExceptions

By reviewing the code and implementing the appropriate solutions, you should be able to eliminate the NullPointerException.