Life, Programming, Everything

You probably know that if you use a value in an inner class, the evil Java compiler wants you to write "final"; people do all kind...

Just posted a new part, "Category of Java Sets" , in Easy Categories For Programmers .

An Excuse Well, I decided to gather all the code related to Function class in one "universe" container class, Functions. The other...

Recently chain builder calls in Java have been gaining popularity, look, e.g. at this . The idea is that you have a builder that has small c...

Say, somewhere in your test code, you need a list of nulls: List<Direction> directionsWithNullValues = Lists.newArrayList( null , null...

Since out of the 5 million Java programmers there's hardly 100 that actually know Java (I do not count myself in that holy hundred), we ...

Find your language below, and drag the grey square to bookmarks tab in your browser. Next time you open a page with edit field (e.g. blogger...

A problem with Java that everybody encounters from time to time is the following: static methods cannot override each other. If class A has ...

In a typical case of user application dealing with some kind of "apache javabean properties access", we still want to have generic...

Here I'll just publish the code that demonstrates what is accepted and what is not by the compiler when you use generics. Not many comme...

(This is the second part, see part 1 ). Here is the code that implements Cartesian product in Java. The implementation amounts to providing ...

You probably know what Cartesian product is. Take two sets, A and B, their product, A x B, is a set of all pairs (a, b), where a belongs to ...

As we all know, functions are not a part of Java language; and closures are banished to the North, to Microsoft. What do we, humble Java pro...