Why am I getting a NullReferenceException with this code?
289
What is a NullReferenceException, and how do I fix it?
8283
Why does null reference print as "null"
58054
When is it OK to catch NullPointerException?
54143
Why is the default value of the string type null instead of an empty string?
81624
Is returning null bad design?
96453
Caught Throwable or Exception is null
150853
An object reference is required to access non-static member
20020
NullPointerException accessing views in onCreate()
89755
Why is "throw null" not creating a compilation error in Java?
599
Is Java "pass-by-reference" or "pass-by-value"?
10581
Avoiding NullPointerException in Java
73120
Nullpointerexception when trying to send data from activity to class
20892
C# nullable string error
46857
Compiler warning: null reference exception
32065
Attempt to de-reference a null object: Trigger
68222
Reference to undeclared entity exception while working with XML
45188
How do I pass a variable by reference?