how to fix Exception in thread "main" java.lang.NullPointerException ?
49
What is a NullPointerException, and how do I fix it?
40818
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
106295
How do I fix an "Illegal start of expression" error in Java?
6882
try catch exception always returns null
289
What is a NullReferenceException, and how do I fix it?
73120
Nullpointerexception when trying to send data from activity to class
3984
How to fix 'android.os.NetworkOnMainThreadException'?
54390
"does not contain a static 'main' method suitable for an entry point"
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
33298
Why is the Java main method static?
10867
How to avoid ArrayIndexOutOfBoundsException or IndexOutOfBoundsException?
61351
NetworkOnMainThreadException
35129
Why does String.valueOf(null) throw a NullPointerException?
125946
' Exception in Application start method, java.lang.reflect.InvocationTargetException ' while reading and displaying from database
103797
Android:android.view.ViewRoot$CalledFromWrongThreadException - How to solve the problem?
87728
ArgumentNullException or NullReferenceException from extension method?
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn