Attempt to invoke virtual method 'void android.database.sqlite.SQLiteDatabase.execSQL(java.lang.String)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
46944
Null pointer Exception - findViewById()
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
35129
Why does String.valueOf(null) throw a NullPointerException?
42958
Method Overloading for null argument
45196
Calling class method through NULL class pointer
53319
ArgumentException or ArgumentNullException for string parameters?
78586
Why doesn't "System.out.println" work in Android?
20020
NullPointerException accessing views in onCreate()
73120
Nullpointerexception when trying to send data from activity to class
30985
Encountering exception ORA-01555
75277
How to implement a db listener in Java
123990
Cannot issue data manipulation statements with executeQuery()
98080
Android: Cannot invoke toString() on the primitive type int
85964
Android: ClassNotFoundException when passing serializable object to Activity
289
What is a NullReferenceException, and how do I fix it?
79586
System.NullPointerException: Attempt to de-reference a null object