“If you get only one Java book, it should be Sams Teach Yourself Java in 21 Days.” --PC Magazine “Sams Teach Yourself Java is one of the best introductions to hands-on Java programming. If you buy one book on Java, this is the one to buy!” --Independent Web Review   In just 21 days, you can acquire the knowledge and skills necessary to develop applications on your computer and apps that run on Android phones and tablets.   No previous programming experience required. By following the 21 carefully organized lessons in this book, anyone can learn the basics of Java programming.   Learn at your own pace. You can work through each chapter sequentially to make sure you thoroughly understand all the concepts and methodologies, or you can focus on specific lessons to learn the techniques that interest you most.   Test your knowledge. Each chapter ends with a Workshop section filled with questions, answers, and exercises for further study. There are even certification practice questions.   Completely revised, updated, and expanded to cover the latest features of Java 7Learn to develop standalone Java applications, Android apps, and Java Web Start applicationsEasy-to-understand, practical examples clearly illustrate the fundamentals of Java programmingDiscover how Swing can help you quickly develop programs with a graphical user interfaceFind out about JDBC 4.1 programming with the Java DB database and XML parsing with the open source XOM class libraryCovers new features of Java 7 such as improved try-catch exception handling, the new switch, and Nimbus look and feel