Thank you for making a simple door very happy.
—Douglas Adams, The Hitchhiker’s Guide to the Galaxy
In the sense of the tradition founded by Kernighan and Ritchie,1 we start with the obligatory “Hello World” program—a minimal example that not only provides a first look at the syntax but also discusses the Vala way from the source code to the executable binary. We also take a glance behind the curtain to see how Vala operates in the background and translates your program into C.
Installing
Before being able to use Vala, you need to install it on your computer, of course. The actual ...