The authors provides an in-depth introduction to Enterprise JavaBeans, a core component of the Java 2 Enterprise platform. Security information is included for enterprise applications, a very important topic in today's technology arena.

"Sams Teach Yourself Java in 21 Days" continues to be one of the most popular, best-selling Java tutorials on the market. Written by two expert technical writers, it has been acclaimed for its clear and personable writing, for its extensive use of examples, and for its logical and complete organization. This new edition of the book maintains and improves upon all these qualities, while updating, revising, and reorganizing the material to cover the latest developments in Java and to expand the book's coverage of core Java programming topics.Sun's new version of Java 2 Standard Edition--SDK version 1.4--is expected to be released by the end of 2001. According to Sun, version 1.4 builds upon Java's cross-platform support and security model with new features and functionality, enhanced performance and scalability, and improved reliability and serviceability.

This edition adds coverage of Java 7 and places emphasis on Android programming. There is a new chapter on Android development and additional material where appropriate throughout the book. Coverage of the JDK has been dropped in favor of NetBeans, the free integrated IDE for Java.

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. With this complete tutorial you’ll quickly master the basics and then move on to more advanced features and concepts. Completely updated for Java 11 and 12, this book teaches you about the Java language and how to use it to create applications for any computing environment. By the time you have finished the book, you’ll have well-rounded knowledge of Java and the Java class libraries. 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 11 and 12 Learn to develop Java applications using NetBeans—an excellent programming platform Easy-to-understand, practical examples clearly illustrate the fundamentals of Java programming Discover how to quickly develop programs with a graphical user interface Find out about JDBC programming with the Derby database Learn how to use Inner Classes and Lambda Expressions Use Java for game programming Create a Slackbot with Java (Exclusive Bonus Chapter)

Sams Teach Yourself Java in 21 Days Covering Java 7 and Android App Development Sams Teach Yourself Java in 21 Days continues to be one of the most popular, best-selling Java tutorials on the market. Written by an expert technical writer, it has been acclaimed for its clear and personable writing, for its extensive use of examples, and for its logical and complete organization. The sixth edition of Sams Teach Yourself Java in 21 Days adds coverage of Java 7 and places a special emphasis on Android programming, capitalizing on the fastest-growing area of Java programming. There will be a new chapter on Android development and additional material where appropriate throughout the book. This edition also includes new material on using NetBeans, the free integrated IDE for Java. 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 7 Learn to develop standalone Java applications, Android apps, and Java Web Start applications Easy-to-understand, practical examples clearly illustrate the fundamentals of Java programming Discover how Swing can help you quickly develop programs with a graphical user interface Find out about JDBC 4.1 programming with the Java DB database and XML parsing with the open source XOM class library Covers new features of Java 7 such as improved try-catch exception handling, the new switch, and Nimbus look and feel

Learn to create your own JavaBeans, use the BDK's Bean Box to visually connect beans into applications, sign and package your beans for distribution, use JavaBeans to create network-enabled applications, find out how beans communicate with one another using the Java event model, create internationalized beans for world-wide use, discover how you can wrap existing applets into beans, learn to tie beans together without using the Bean Box, and master JavaBeans development and packaging with step-by-step tutorials.

In just 21 days, you can acquire the knowledge and skills necessary to develop applications on your computer, web servers, and mobile devices. With this complete tutorial you’ll quickly master the basics and then move on to more advanced features and concepts. Completely updated for Java 11 and 12, this book teaches you about the Java language and how to use it to create applications for any computing environment. By the time you have finished the book, you’ll have well-rounded knowledge of Java and the Java class libraries. 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 11 and 12 Learn to develop Java applications using NetBeans–an excellent programming platform Easy-to-understand, practical examples clearly illustrate the fundamentals of Java programming Discover how to quickly develop programs with a graphical user interface Find out about JDBC programming with the Derby database Learn how to use Inner Classes and Lambda Expressions Learn rapid application development with Apache NetBeans Create a game using Java