Teaching how to program in an object-oriented style and beginning with basic ideas, this book progresses to the process of creating useful object-oriented applications. Its starting point is that Java is a language for developing serious and sizeable applications rather than small applets. Along the way, the core features of Java are covered, including the use of exceptions and multi-threading. Attention is paid to the use and creation of classes and how to class libraries are created and re-used.;The "How to program in Java" content is underpinned by a presentation of object-oriented programming concepts and object-oriented design, with the aim of providing a framework for understanding how Java programs work and how they can be designed in an organized and systematic way.;Many examples are provided to support the main text, illustrating how to use Java effectively. The final part of the book provides a series of case studies of larger applications, showing how the core ideas can be applied when creating real applications, particularly those that use network communications.