null pointer exception when passing file name to method of another class
49
What is a NullPointerException, and how do I fix it?
32262
How can I read a file even when getting an "in use by another process" exception?
131864
Member '' cannot be accessed with an instance reference
8283
Why does null reference print as "null"
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
46857
Compiler warning: null reference exception
80018
Accessing class members on a NULL pointer
87728
ArgumentNullException or NullReferenceException from extension method?
98227
Any alternative to calling getGraphics() which is returning null
98866
Null Pointer Exception on getGraphics()
289
What is a NullReferenceException, and how do I fix it?
58054
When is it OK to catch NullPointerException?
55274
Java: Exception itself is null
144423
"No enclosing instance of type" error while calling method from another class in Android
1605
What is the reason behind "non-static method cannot be referenced from a static context"?
130246
Get filename from file pointer
9814
Trouble with calling method