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Online applications based on the HTTP protocol are shifting from wired networks, known as Web applications and Web services, to wireless networks, known as wireless mobile online applications, due to the rapid growth of mobile devices, such as Personal Digital Assistants and cell phones. Among the enabling technologies, J2ME is the dominant and the most potential one for building up these wireless mobile online applications. This paper presents a framework that makes the modeling, implementation, and maintenance of wireless mobile online applications intuitive and easy, especially for students and beginners.