(It is very suitable for java development practice courses from introduction to actual combat. The overall content of the course has been redesigned. After completing the course, students can have a clear understanding of the overall process of java development. In the course of explanation, many engineering cases, experience and project summary are also integrated into the course, which will improve the teaching quality of the course. At the same time, the course also supports all course materials, including course handouts, course notes, course use codes, etc., which are very suitable for beginners and java lovers to study and learn. study.)