J2ME Technology Reference Manual

Author: Shi Zheng
Publisher:
Publish Date: 2004-01-01
Features: This series of books is based on the overall architecture of SunONE and comprehensively reflects the core technology of SunONE—Java application development. The series delves into various aspects of Java application development from multiple perspectives, covering all important ideas and practices of Java technology, demonstrating the latest advancements and trends in Java technology, and significantly enhancing readers' theoretical and practical skills. At the same time, the series emphasizes practicality. It introduces numerous industry application examples, enabling readers not only to quickly master development skills but also to benefit from comprehensive system analysis.
About This Book Java is the most widely used pure object-oriented programming language today. It is easy to learn and use, highly portable, and the most competitive programming language for developing information management systems, web applications, and embedded devices. Since Sun Microsystems released the Java language in 1995, it has continuously evolved in functionality and expanded its application domains. With an increasing number of mobile phones and personal digital assistants integrating into the information superhighway, accessing web sites from mobile devices has become increasingly important. The internet era has passed, and the mobile internet era has arrived. Java pioneered the use of small storage capacities in consumer devices, making it the ideal language for developing applications for mobile phones, pagers, and other micro devices. And J2ME is making all of this possible. J2ME is a highly optimized Java runtime environment designed for consumer products with limited energy, limited network connections (often wireless), and limited graphical user interface capabilities, including pagers, mobile phones, video phones, digital set-top boxes, and automotive navigation systems. J2ME brings the cross-platform capabilities of the Java language to small devices, allowing mobile wireless devices to share applications. This book comprehensively introduces all the classes in the MIDP framework of J2ME and two fundamental core packages in the JFD framework. The book is divided into 7 chapters, covering the java.io package, java.lang package, java.util package, javax.microedition.io package, javax.microedition.lcdui package, javax.microedition.midlet package, and javax.microedition.rms package. The book is detailed, well-structured, and rich in examples, making it a valuable reference for J2ME programmers. It is suitable for professional and semi-professional Java programmers to read and can also serve as a Java reference book for programmers transitioning to Java mobile development.