Core Java Volume I Fundamentals (10th Edition)
To the Reader
In late 1995, the Java programming language burst onto the Internet scene and gained instant celebrity status. The promise of Java technology was that it would become the universal glue that connects users with information wherever it comes from—web servers, databases, information providers, or any other imaginable source. Indeed, Java is in a unique position to fulfill this promise. It is an extremely solidly engineered language that has gained wide acceptance. Its built-in security and safety features are reassuring both to programmers and to the users of Java programs. Java has built-in support for advanced programming tasks, such as network programming, database connectivity, and concurrency.
Since 1995, nine major revisions of the Java Development Kit have been released. Over the course of the last 20 years, the Application Programming Interface (API) has grown from about 200 to over 4,000 classes. The API now spans such diverse areas as user interface construction, database management, internationalization, security, and XML processing.
The book you have in your hands is the first volume of the tenth edition of Core Java®. Each edition closely followed a release of the Java Development Kit, and each time, we rewrote the book to take advantage of the newest Java features. This edition has been updated to reflect the features of Java Standard Edition (SE) 8.
As with the previous editions of this book, we still target serious programmers who want to put Java to work on real projects. We think of you, our reader, as a programmer with a solid background in a programming language other than Java, and we assume that you don’t like books filled with toy examples (such as toasters, zoo animals, or “nervous text”). You won’t find any of these in our book. Our goal is to enable you to fully understand the Java language and library, not to give you an illusion of understanding.
In this book you will find lots of sample code demonstrating almost every language and library feature that we discuss. We keep the sample programs purposefully simple to focus on the major points, but, for the most part, they aren’t fake and they don’t cut corners. They should make good starting points for your own code.
We assume you are willing, even eager, to learn about all the advanced features that Java puts at your disposal. For example, we give you a detailed treatment of
• Object-oriented programming
• Reflection and proxies
• Interfaces and inner classes
• Exception handling
• Generic programming
• The collections framework
• The event listener model
• Graphical user interface design with the Swing UI toolkit
With the explosive growth of the Java class library, a one-volume treatment of all the features of Java that serious programmers need to know is no longer possible. Hence, we decided to break up the book into two volumes. The first volume, which you hold in your hands, concentrates on the fundamental concepts of the Java language, along with the basics of user-interface programming. The second volume, Core Java®, Volume II—Advanced Features, goes further into the enterprise features and advanced user-interface programming. It includes detailed discussions of
• The Stream API
• File processing and regular expressions
• XML processing
• Network programming
• Advanced GUI components
• Advanced graphics
• Native methods
When writing a book, errors and inaccuracies are inevitable. We’d very much like to know about them. But, of course, we’d prefer to learn about each of them only once. We have put up a list of frequently asked questions, bug fixes, and workarounds on a web page at http://horstmann.com/corejava. Strategically placed at the end of the errata page (to encourage you to read through it first) is a form you can use to report bugs and suggest improvements. Please don’t be disappointed if we don’t answer every query or don’t get back to you immediately. We do read all e-mail and appreciate your input to make future editions of this book clearer and more informative.
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|March 8, 2016|
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