Trying to switch a value from on Queue to another. Getting NullPointerException?
49
What is a NullPointerException, and how do I fix it?
140738
Does setting Java objects to null do anything anymore?
1087
The calling thread cannot access this object because a different thread owns it
96843
What will happen when I call a member function on a NULL object pointer?
127417
making switch "if" statements
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
55274
Java: Exception itself is null
79289
Pass ArrayList from one activity to another activity on android
289
What is a NullReferenceException, and how do I fix it?
4069
How do I call one constructor from another in Java?
65377
Trouble over riding and using equals method in java
4202
Java: Why does this swap method not work?
137545
"'void' type not allowed here" error (Java)
5874
Java switch statement: Constant expression required, but it IS constant
65960
Why the switch statement cannot be applied on strings?
44760
Synchronizing on an object in java, then changing the value of the synchronized-on variable
129390
How to send an object from one Android Activity to another using Intents?