Du Qifeng is an author about whom limited public information is available. It is known only that the author has one work, Java Programming (MOOC Edition). The book falls under the exam category and addresses the teaching and exam-preparation needs of Java programming. Judging from the subject matter, the author focuses on basic programming instruction and course-supporting materials, responding to the recent trend of MOOC-based teaching and blended online-offline learning in universities and training institutions. The phrase "MOOC Edition" in the title suggests that the content may be designed to work alongside online courses, making it easier for readers to study with videos and the textbook in parallel. No public information has been disclosed about the author's biography, education, or positions, so no speculation is offered here. Based on the available material, Du Qifeng's writing style appears to be textbook-oriented and practical, emphasizing clear organization of knowledge points and exam applicability; the book's influence lies mainly in providing Java beginners and exam candidates with a clearly structured learning resource.
