Attempt to invoke virtual method 'void android.widget.CheckBox.setOnCheckedChangeListener(...)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
66058
In Java, when should I create a checked exception, and when should it be a runtime exception?
35129
Why does String.valueOf(null) throw a NullPointerException?
135818
How to implement onBackPressed() in Fragments?
13711
java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType
47674
How to pass an object from one activity to another on Android
65815
How to pass a value from one Activity to another in Android?
43209
Android, ListView IllegalStateException: "The content of the adapter has changed but ListView did not receive a notification"
64332
avoiding null reference exceptions
69771
NullPointerException when setting attribute?
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
80631
NullPointerException but compiling?
46857
Compiler warning: null reference exception
2116
IllegalArgumentException or NullPointerException for a null parameter?
114816
Is null reference possible?
96046
Static fields on a null reference in Java
79586
System.NullPointerException: Attempt to de-reference a null object