Java 21 Days, Sams Teach Yourself (Covering 9) (B&N Exclusive Edition) in Bloomington, MN

This Barnes and Noble exclusive edition includes a bonus chapter on writing Slackbots in Java. Slack is the massively popular workplace collaboration tool that can be extended with bots -- so you can get things done without ever leaving Slack. Java's a great platform for creating these bots.
In arenas ranging from enterprise development to Android app programming, Java remains one of the world's most popular programming languages.
Sams Teach Yourself Java in 21 Days (Covers Java 11/12), B&N Exclusive Edition
helps the serious learner gain true mastery over the new Java 11/12.