Suppose you have to unit-test some Java code that writes to the console. Here’s a way to do it: import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.io.PrintStream; public class StringPrintStream extends PrintStream { private final File file; …

Updated: you should check out this 40-minute presentation. The stuff below covers just one of his recommendations: testing code that changes often, in case your VCS is SVN. Reviews and refactoring take time - and there’s just never enough of that. Once I found a blog entry (sorry, I can’t seem to find it …

Useful for autoboxing. By default, Integer.valueOf caches between -128 and 127 (min/max. of signed byte). However, you can increase this range by using: -XX:+AggressiveOpts and/or -Djava.lang.Integer.<wbr></wbr>IntegerCache.high when launching the VM. More details: …

Our younger daughter, Kata, is a Java girl. If you ask her to put something down or stop playing with something, she just drops it and leaves it where it is. It’s out of scope, and will be managed by the garbage collector…

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