The environment

macOS+VSCode

Installing the runtime (JDK)

Oracle official website :Java SE 16, select the DMG file of the corresponding system, download it, and install it

Inspection: the Java version

Install the VSCode plug-in

  1. Language Support for Java(TM) by Red Hat
  2. Debugger for Java
  3. Java Test Runner
  4. Maven for Java

Compile operation

After integrating the above plug-ins, right-click between Run Code

The actual command is CD “~/homework3/” && javac testdemo. Java && Java TestDemo

Create a project

Command +shift+p:

All information defaults to enter, and finally the project structure