Java program encountering NullPointerException, what part of this program went wrong?
49
What is a NullPointerException, and how do I fix it?
134907
Converting 'ArrayList to 'String[]' in Java
79477
Why is "null" present in C# and Java?
480
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
23964
Why does Java have a "NullPointerException" when there are no pointers in Java?
87728
ArgumentNullException or NullReferenceException from extension method?
52076
Why is an ArrayList parameter modified, but not a String parameter?
106
What is a void pointer and what is a null pointer?
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
10867
How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException?
78586
Why doesn't "System.out.println" work in Android?
42612
Generics, arrays, and the ClassCastException
599
Is Java "pass-by-reference" or "pass-by-value"?
38780
Checking for null before ToString()
73285
Null Pointer Exception in XMl Parsing
70532
NullReferenceException after POST