Attempt to invoke virtual method on a null object reference. But why is it Happening? Android Studio (Java)
49
What is a NullPointerException, and how do I fix it?
35129
Why does String.valueOf(null) throw a NullPointerException?
60221
Can I call a base class's virtual function if I'm overriding it?
140738
Does setting Java objects to null do anything anymore?
144423
"No enclosing instance of type" error while calling method from another class in Android
106
What is a void pointer and what is a null pointer?
101146
Why can't I write Nullable>?
155627
Keyword 'this' (Me) is not available calling the base constructor
8533
How do I invoke a Java method when given the method name as a string?
81518
Find out what variable is throwing a NullPointerException programmatically
95
Calling virtual functions inside constructors
87728
ArgumentNullException or NullReferenceException from extension method?
94335
How are virtual functions and vtable implemented?
58054
When is it OK to catch NullPointerException?
39543
Is it legal/well-defined C++ to call a non-static method that doesn't access members through a null pointer?
31537
Checking for null before event dispatching... thread safe?
139395
com.sun.istack.SAXException2 : Instance ... is substituting "java.lang.Object", but ... is bound to an anonymous type