Cyrille Martraire

While Java 8 is coming, are you sure you know well the enums that were introduced in Java 5? Java enums are still underestimated, and it’s a pity since they are more useful than you might think, they’re not just for your usual enumerated constants! Java enum is polymorphic Java enums are real classes that [...]

You keep hearing about functional programming that is going to take over the world, and you are still stuck to plain Java? Fear not, since you can already add a touch of functional style into your daily Java. In addition, it’s fun, saves you many lines of code and leads to fewer bugs. What is [...]

Now that enterprises have chosen stable platforms (JVM and .Net), on top of which we can choose a syntax out of many available, which language will you pick up as your next favourite? New languages to have a look at (my own selection) Based on what I read everyday in various blogs, I arbitrarily reduced [...]

This anti-pattern is about Using String instances all the time instead of more powerful objects. This is a special case of primitive obsession. Examples Here are some flavours of this anti-pattern: String as keys in a Map: I have seen calls to toString() on objects just to use their String representation as a key in [...]

Deciding where and how to place the annotations is not innocent. The last thing we want is to create extra maintenance effort because of the annotations. In other words, we want annotations that are stable, or that change for the same reasons and at the same time than the elements they annotate. This article suggests [...]

Many concepts look obvious because they are used often, not because they are really simple. Small quantities that we encounter all the time in most projects, such as date, time, price, quantity of items, a min and a max… hardly are a subject of interest from developers « as it is obvious that we can represent [...]