Conventions used in this tutorial

The following typographical conventions are used throughout this tutorial:

• Monospace font

  indicates example code.

• Italic font indicates command names, variable names, directory/file names, package/class/operation/attribute names.

The following margin icons are used throughout this tutorial to draw attention to special topics:

The important icon is used whenever a piece of information is really important to know.

The warning icon is used whenever you should be warned about possible traps and pitfalls.

The tip icon is used whenever a tip can make your life a little bit easier.