In fact, Java is divided into three versions, and each version is divided into two parts: CoreJava and DeskJava. General schools only learn the CoreJava part. If you want to research, you can take an examination of Sun Company (it should be Oracle Bone Inscriptions's certificate). For Jsp, it should be called Java Web programming (Taobao, Renren, mobile online business hall and online business halls of major banks are all JSP pages). There is no certificate to take this exam. In addition, if you want to make plans for future employment, it is suggested that the landlord JAVA an exact understanding of Spring mvc, such as JDBC, Hibernate, Struts, Spring, EJB, IBATIE, Flex, Ext and Ajax, because these are all technologies that enterprises are really using. In fact, there are really not many people who can engage in development work in our software major now, and many still need to be trained. I was trained in Yi Tu, and now I am working in Zhongchuang. At that time, I also went to learn about other training institutions in Jinan, and I still felt that their skills were relatively excellent.