What should java programmers learn?

What should java programmers learn? Let's get to know each other.

1. Object-oriented knowledge: JAVA is an object-oriented development language. What is an object? What is a class? What is encapsulation and so on.

2.JAVA Grammar: If you have no experience at all, you need to learn books such as JAVA elementary tutorials. If you have experience in developing object-oriented languages such as C++, you only need to look through relevant books introducing JAVA.

3.JSP and HTML: If you want to be a JAVA programmer, you must be familiar with JSP and HTML, such as several built-in objects of JSP: Session, Request and Reponse, and common JSP tags, such as include and userBean.

4.webserver: Web server can let you see how your own pages move. TOMCAT and others are good Web servers.

5. Development tools: Development tools can help better and faster development, so it is necessary to be familiar with several development tools. At present, the popular JAVA development tools are JBuilder, IDEA and Eclipse.

6. learn to use IDE:Intellij and IDEA can be used, and be familiar with common shortcut keys.

7. Learn an editor: Vim or Emacs, learn to search, replace and complete the code.

8. Learn Linux development environment and bashshell.

9. Learn general class libraries and toolkits other than JDK.

Today's sharing is over. I hope it will help everyone.