Java beginner course part 1: Hello world! Traditionally, when learning any new programming language, the first thing a tutorial should demonstrate, is how to print “Hello World!” to the screen.

Here's a quick look at the three types of class loaders and everything you need to know to work with them in your Java programs.

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.