What are the main contents to learn in Java?

Learning Java is a good choice. Java requires millions of talents in the IT industry every year, and the average monthly salary is about 1.8W.

If you want to meet working standards, you can refer to the following content:

1. Java SE partial basic syntax, object-oriented, exceptions, IO streams, multi-threading, Java Swing, JDBC, general Types, annotations, reflection, etc.

2. Database part, basic sql statements, sql statement tuning, indexes, database engines, stored procedures, triggers, transactions, etc.

3. Front-end part, HTML5 CSS3 JS, HTML DOM Jquery BootStrap, etc.

4. Java EE part, Tomcat and Nginx server construction, configuration files, Servlet, JSP, Filter, Listener, http protocol, MVC, etc.

5. For the framework part, each framework can be learned separately, and then you can learn how to use the SSM or SSH framework, how to build it, and how to integrate it. Why are frameworks used in development? What is Rest? Why Spring endures for a long time, how to implement the underlying layer, etc.

6.23 design patterns, master common ones, such as multiple implementations of singleton pattern, chain of responsibility pattern, factory pattern, decorator pattern, etc., and understand common scenarios.

7. Basic algorithms and data structures, eight sorting algorithms, and search algorithms.

8. Proficient in using maven and other build tools, git and other version control tools, familiar with common linux commands, log4j, dubug, junit unit testing, log printing tools, Redis and other NoSQL.

The Internet industry is still one of the most popular industries. After learning IT skills, those who are good enough will have the opportunity to enter high-paying jobs in major Internet companies such as Tencent, Alibaba, and NetEase. The development prospects are very good, and ordinary people can also study.

If you want to study systematically, you can check and compare popular schools that offer relevant majors. Good schools have the ability to independently develop courses according to current corporate needs, and can obtain a college or undergraduate degree during school. Software College, Nanjing Kegongchang, Nanjing Peking University Jade Bird and other schools offering related majors are all good. It is recommended to conduct on-site inspections and compare.

I wish you success and hope you will adopt it.