ptg7068951368 HOUR 24:Writing Android Apps
The Leader app also has been addedto the phone’s applications with its
own “Take Me to Your Leader” icon. It will stay on the phone even after
you disconnect the USB cable.
Congratulations! The world now has one billion and one Android apps.Summary
The goal of Sams Teach Yourself Java in 24 Hourshas been to help you become
comfortable with the concepts of programming and confident in your abili-
ty to write your own applications, whether they run on a desktop comput-
er, web page, web server, or even a phone. Java has an approach that is
somewhat difficult to master. (Feel free to scratch out the word “somewhat”
in the previous sentence if it’s a gross misstatement of the truth.)
As you build experience in Java, you’re building experience that grows
increasingly relevant, because concepts such as object-oriented program-
ming, virtual machines, and secure environments are on the leading edge
of software development.
If you haven’t already, you should check out the appendixes for additional
useful information.
At the conclusion of this hour, you can explore Java in several different
places. Programmers are discussing the language on the weblogs at
http://weblogs.java.net. Numerous Java job openings are displayed in the
database of employment websites such as http://www.careerbuilder.com.
There’s also a website for this book at http://www.java24hours.com where
you can send email to the author and read answers to reader questions,
clarifications to the book, and (gulp) corrections.
One way to continue building your skills as a Java programmer is to read
Sams Teach Yourself Java in 21 Days. I wrote that book also, and it expands
on the subjects covered here and introduces new ones, such as JDBC, Java
servlets, and network programming.
There’s also more coverage of Android.
If you didn’t skip ahead and have just completed all 24 hours, kudos.
Please use your newfound programming skills to get a good job and
rebuild the world economy.NOTE
As you might have surmised,
there’s a lot more to Android
programming than can be cov-
ered in a single hour,even by
an author of such remarkable
experience,enormous talent,
and unsurpassed humility as
myself. Sams offers another
book that takes the Java pro-
gramming you’ve learned here
and extends it with another 24
hours of Android-specific cover-
age:Sams Teach Yourself
Android Application
Development, 2nd Edition,by
Lauren Darcey and Shane
Conder (ISBN 978-0-13-
278686-7). This hour was writ-
ten to be fully compatiblewith
how Darcey and Conder cover
Android.