Java Puzzlers – Scraping the Bottom of the Barrel /Josh Bloch, Jeremy Manson – 55 min./

Google I/O 2011: How can they do it? How can Josh Bloch and Jeremy Manson keep coming up with such great programming puzzlers year after year? They can’t! In this, the eighth installment of the perennial crowd pleaser, Click and Hack the Type-It brothers are truly scraping the bottom of the barrel. But the dregs they come up can still astonish, delight, and educate. So come to „Java Puzzlers,—Scraping the Bottom of the Barrel, have some fun, and learn to avoid the traps and pitfalls in the Java programming language. One of these puzzlers is about regular expressions, whose performance is a rich topic with many surprises. For background and details, see http://swtch.com/~rsc/regexp/regexp1.html.