Null Pointer Exception When Calling Method from another class Using an Object
49
What is a NullPointerException, and how do I fix it?
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
137692
NullPointerException when working with arrays
2116
IllegalArgumentException or NullPointerException for a null parameter?
129390
How to send an object from one Android Activity to another using Intents?
88920
Is using NULL references OK?
155957
Method causes OutOfMemory error
81518
Find out what variable is throwing a NullPointerException programmatically
150853
An object reference is required to access non-static member
79586
System.NullPointerException: Attempt to de-reference a null object
131864
Member '' cannot be accessed with an instance reference
50046
java : non-static variable cannot be referenced from a static context Error
20020
NullPointerException accessing views in onCreate()
70532
NullReferenceException after POST
21329
How to call a method of a class?
107603
Creating an instance using the class name and calling constructor
85266
Unit testing a method that calls another method