Note that sometimes when you compile Java source files and you get errors, the little caret ^ symbol that points to the spot in the code statement may not necessarily be in the right location. This is probably because of the fonts you are using in the EditPlus program (even if you didn't change the fonts). For the most part this shouldn't be a problem since you will probably know exactly where your error is in the offending statement, but if not, you will have to try compiling your program in DOS instead.
You can also set up EditPlus to use Appletviewer. The image below shows the settings for the Appletviewer utility: