While by no means exhaustive, we've listed a few error messages that
you might encounter early in the process and suggested some solutions.
The list is completely biased by what error messages we have seen in
our programming recently :-)
Undefined variable
You've referenced a variable that is not defined within the scope
that it is used. Check whether it is a typo or simply defined
elsewhere.
Wrong number of arguments in constructor
In trying to create a new object, you've misused the
constructor.
Can't make a static reference to nonstatic variable
whatever in class yourclass
You probably used a class name where you meant to use an object
name.
Variable whatever in class yourclass1 not accessible from class yourclass2
Don't try to directly reference private instance variables.
Undefined variable, class, or package name
Check spelling and capitalization on the name being
used. Probably a typo.
Common Run-Time Errors
Again, we'll be keeping track of error messages that we've seen during
run-time with suggested solutions.
Can't find class yourclass
You've given java the wrong name for the class file; you're in the
wrong directory, or you haven't imported the classes needed by
yourclass to run.
