The knowledge system in Java is huge, and all the knowledge points are inextricably linked, so you must learn in one go, otherwise all your efforts will be wasted. Think about it, if you attend a Java weekend class, you will only attend classes for two days a week. After five days, it is estimated that you have forgotten all the previous contents. Even if you don't forget, it usually takes six months to complete Java training. You can calculate that if you attend classes only two days a week, the study time will be extended, which is not conducive to employment. For more information about Java training, I suggest you go to Qianfeng Education for a more detailed understanding. At present, Qianfeng Education has established direct-operated campuses in more than 20 core cities such as Beijing, Shenzhen, Shanghai, Guangzhou, Zhengzhou and Dalian, waiting for you to listen.