本书共分20章，第1-4章解释了Java虚拟机的体系结构，包括Java栈、堆、方法区、执行引擎等；第5-20章深入描述了Java技术的内部细节，包括垃圾收集、Java安全模型、Java的连接模型和动态扩展机制、class文件、运算及流程控制等等，其中第6章和附录A-C安全可以作为class文件和指令集的参考手册。本书还附带光盘，光盘中包含用以辅助说明正文内容的交互式例示applet及示例源代码。-Allow phonetic typing

Book is divided into 20 chapters, chapters 1-4 explain the architecture of the Java Virtual Machine, including the Java stack, heap, methods area, the execution engine　5-20 chapter in-depth descr iption of the internal details of the Java technology, including garbagecollection, the Java security model, Java connection model and the dynamic extension mechanism, the class file, computing and process control, etc., of which the first six chapters and Appendix AC safety can be used as the class files and instruction set reference manual. The book also comes with a CD-ROM, CD-ROM included in attempts to explain the content of interactive cases to show the applet and sample source code.