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: "The user will enter some text into the UITextField textbox and click on the UIButton button to start the search."

A block of code is set as follows:

public override void ViewDidLoad() 
{
  base.ViewDidLoad();
  int count = 0;
  button.TouchUpInside += (sender, e) => 
    label.Text = string.Format("Count: {0}", ++count);
}

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

public override void ViewDidLoad() 
{
  base.ViewDidLoad();
  int count = 0;
  button.TouchUpInside += (sender, e) => 
    label.Text = string.Format("Count: {0}", ++count);
}

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

keytool -genkey -v -keystore <filename>.keystore -alias <key-name> -keyalg RSA -keysize 2048 -validity 10000

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: "Clicking the Next button moves you to the next screen."