To help you get the most from the text and keep track of what’s happening, several conventions are used throughout the book.
Tips, hints, tricks, and asides to the current discussion are offset and placed in italics like this.
As for styles in the text:
We highlight new terms and important words when we introduce them.
We show filenames, URLs, and code within the text like so: persistence.properties.
We present code in two different ways:
In code examples we highlight new and important code with a gray background. The gray highlighting is not used for code that's less important in the present context, or has been shown before.