There is a bunch of languages running on the JVM, from of course Java, to Clojure and JRuby. All of them have different syntaxes, but it’s awesome they all compile to the same bytecode. The JVM unites them all. Of course, it’s biased toward Java, but even in Java, there is some magic happening in the bytecode. The most well-known trick comes from the following code: public class Foo { static class Bar { private Bar() {} } public static void main(String...