Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Next, we have the Mother class, which extends Grandmother and has its own constructor method."

A block of code is set as follows:

    Mother() {
        System.out.println("Mother constructor executed.");
    }
}

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 abstract class MotorHomeAbstractFactory {
    public abstract Frame createFrame();
    public abstract Style createStyle();
    public abstract Engine createEngine();
    public abstract Kitchen createKitchen();
}

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Beneath the Receive Order node is a horizontal black bar referred to as a fork."