Welcome to Java and Java How to Program, Ninth Edition! This book presents leadingedge computing technologies for students, instructors and software developers.

The new Chapter 1 engages students with intriguing facts and figures to get them excited about studying computers and programming. The chapter includes a table of some of the research made possible by computers; current technology trends and hardware discussion; the data hierarchy; a table of mobile and Internet app platforms; a new section on social networking; an introduction to Android; a table of popular web services; a table of business and technology publications and websites that will help you stay up to date with the latest technology news and trends; and updated exercises.

The book is appropriate for introductory course sequences based on the ACM/IEEE curriculum recommendations and for AP Computer Science exam preparation.

We focus on software engineering best practices. At the heart of the book is the Deitel signature “live-code approach”—concepts are presented in the context of complete working programs, rather than in code snippets. Each complete code example is accompanied by live sample executions. All the source code is available at www.deitel.com/books/ jhtp9/ and at the book’s Companion Website www.pearsonhighered.com/deitel/.

As you read the book, if you have questions, send an e-mail to deitel@deitel.com; we’ll respond promptly. For updates on this book, visit www.deitel.com/books/jhtp9/, follow us on Facebook (www.deitel.com/deitelfan) andTwitter (@deitel), and subscribe to the Deitel® Buzz Online newsletter (www.deitel.com/newsletter/subscribe.html).