Newer JVM-compatible languages like Scala, Groovy, and JRuby are better suited to creating internal DSLs than the Java language itself. Find out why in this final article in Venkat Subramaniam's ...

This post explains how to use loops in Java. Learn for loops, while loops, do while, break, and continue. All without going loopy!

Java has no notion of a "current working directory" per se IIRC - user.dir is not always set to the directory the user started the app from. You can find that however - search in Google groups.