Conventions

In this book, you will find a number of text styles 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: "Add three TextViews to your layout, and then add the code to your MainActivity's onCreate() method."

A block of code is set as follows:

Sequence prime = (Sequence) SequenceCache.getSequence("1");
primeText.setText(new StringBuilder()
        .append(getString(R.string.prime_text))
        .append(prime.getResult())
        .toString());

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

    @Override
    public String getDescription() {
        return filling.getDescription() + " Double portion";
    }

Any command-line input or output is written as follows:

/gradlew clean:

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Enable developer options on your handset. On some models, this can involve navigating to Settings | About phone"

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.