Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "A Spring MVC app is marked by the @Controller annotation."

A block of code is set as follows:

@RestController
class App {
    @RequestMapping("/")
    def home() {
        "Hello, world!"
    }
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

@RestController
class App {
    @RequestMapping("/")
    def home() {
        "Hello, world!"
    }
}

Any command-line input ...

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