Here at the Bouncy Castle, we believe in encryption. We believe so strongly in encryption, that we ve gone to the effort to provide some for everybody.
There has been a great deal of interest in closures lately, driven in great part by the fact that there is talk of adding some form of anonymous functions to the Java. Most of the time, people talk about “adding closures” to Java, and that prompts a flurry of questions of the form “what is a closure and why should I care?”
The lucky kids of JavaSchools are never going to get weird segfaults trying to implement pointer-based hash tables. They're never going to go stark, raving mad trying to pack things into bits. They'll never have to get their head around how, in a purely functional program, the value of a variable never changes.