Why this object reference variable is null after creating an object and assigning it to the variable?
599
Is Java "pass-by-reference" or "pass-by-value"?
2701
Assigning to variable from parent function: "Local variable referenced before assignment"
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
134010
Can Visual Studio tell me which reference threw a NullReferenceException?
9683
How to use GetSObject to retrieve related data in a null safe manner?
44561
How to reference non-static variable name from static context?
142031
Variable scope confusion in C#
35590
How to fix NullPointerException in Java?
54143
Why is the default value of the string type null instead of an empty string?
133927
Java variable might not have been initialized?
12827
Are nullable types reference types?
37988
System.NullPointerException: Attempt to de-reference a null object:
142913
How do you get the "object reference" of an object in java when toString() and hashCode() have been overridden?
140738
Does setting Java objects to null do anything anymore?
3868
Why use the 'ref' keyword when passing an object?
18925
Why are my fields initialized to null or to the default value of zero when I've declared and initialized them in my class' constructor?
19198
Does assigning objects to null in Java impact garbage collection?