Java Projects - Second Edition

Conventions used

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

CodeInText: Indicates code words in the text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The simplest way to do that is to initiate new Thread() and then call the start() method on the thread."

A block of code is set as follows:

 private boolean isNotUnique(Color[] guess) {
        final var alreadyPresent = new HashSet<Color>();
        for (final var color : guess) {
            if (alreadyPresent.contains(color)) {
                return true;
            }
            alreadyPresent.add(color);
        }
        return false;
    }

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