If you try to do an experiment or a calculation and it doesn’t work out, should you tell other researchers about it? Or just move on to something more promising as quickly as you can? Philip Ball ...

I am writing a text-based elevator program in java for my assignment. I have it up and it runs as desired in the specifications. However, the word "null" seems to appear before my toString() call in a ...

I've had this Null problem when a Java program has crashed...I assumed it was a dump file for the crashed program since that is the only time it appears.