Using functions in a class keeps returning NullPointerException error - Java
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What is a NullPointerException, and how do I fix it?
42612
Generics, arrays, and the ClassCastException
80631
NullPointerException but compiling?
33213
Function pointers/delegates in Java?
79586
System.NullPointerException: Attempt to de-reference a null object
131864
Member '' cannot be accessed with an instance reference
96453
Caught Throwable or Exception is null
10818
NullPointerException : println needs a message in android
20020
NullPointerException accessing views in onCreate()
54392
How to call getClass() from a static method in Java?
132708
Function returning Null along with other unexpected expressions
64200
Can Java's NullPointerException be changed to report on which variable was null?
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
15113
How to use an array list in Java?
134329
Can you use a string to instantiate a class?
120042
Nested functions in Java
34921
How do I use a class method as a callback function?