(Course introduction: It includes three stages: 450 class hours in total, 17 stages of projects running through it, and professional training of four major projects to quickly understand the whole software development process and the use of related professional tools! Initial stage: focusing on Java core technology. Intermediate stage: focusing on 3G professional technology. Advanced stage: focus on project practice. This course combines the project, with the lowest starting point, the lowest price, the most effective technology, the most knowledge, the most simple and understandable explanation, and the hands on teaching staff grasp the whole process of mobile software development and professional software development technology from simple to deep, so that you can become a professional mobile development software engineer with rich development experience from a novice mobile development technology. The whole video teaching touches on four major technologies: JavaCore core technology (condensed version) Android use and development technology (key) database technology (condensed version) Java background server side technology (condensed version) to extract Java related technologies related to Android, making your technology any, systematic, and office wide!)