Conventions

To help you get the most from the text and keep track of what’s happening, we’ve used a number of conventions throughout the book.

Try It Out

The Try It Out is an exercise you should work through, following the text in the book.

1. They usually consist of a set of steps.

2. Each step has a number.

3. Follow the steps through with your copy of the chapter resource, when one is available. Sometimes, exercise steps build on Try It Outs previously presented in the chapter, or you may need something off the Wrox website to perform the steps. You can download chapter resources by searching for the title of this book at www.wrox.com.

How It Works

After each Try It Out, the code you’ve typed will be explained in detail.

  Occasionally, in Try It Outs, you see text in this format, which means that this is code you need to enter. 

Important  

In a Try It Out, boxes like this mean that there is text for you to enter during the course of the exercise. Boxes like this can also hold important, not-to-be forgotten information that is directly relevant to the surrounding text.

Tip 

Tips, hints, tricks, and asides to the current discussion are offset and placed in italics like this.

As for styles in the text:

• New terms and important words are highlighted when introduced.

• Keyboard strokes appear like this: Ctrl+A.

• File names, URLs, and code within the text appear like this: persistence.properties.