I use the RexExp Classes in a way I would use them in Perl. So I often scan text files. When they are big (10MB) I get an 'out of memory' exception, though my computer has lots of resources left. The fix is quite simple, though I would have never thought of it, if I hadn't used this trick to boost performance with other programms. Just call your programm with java -Xmx96m RegTest This will allocate 96MB of memory for your programm. I think this should be stated in the documentation, as it should be quite a common problem (same with using XML DOM and big XML files). Stephan
