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: "We can also use several operators between Observable and Observer to transform each pushed item or manipulate them in some way".

A block of code is set as follows:

import io.reactivex.Observable;
public class Launcher {
      public static void main(String[] args) {
        Observable<String> myStrings =
          Observable.just("Alpha", "Beta", "Gamma", "Delta", 
"Epsilon");
      }
}

Any output is written as follows:

    Alpha 
    Beta 
    Gamma 
    Delta 
    Epsilon

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: "You also have the option to use Maven, and you can view the appropriate configuration in The Central Repository by selecting the Apache Maven configuration information."