Java installation and environment configuration

download

Choose the commonly used ones JDK 8for installation, you can go to the official website to download or domestic mirrors, domestic mirrors are faster and more convenient
Here it is recommended to use Huawei’s mirror
https://repo.huaweicloud.com/java/jdk/

Select a version, and then download the system The corresponding version, my system is win 10 64-bit, choose to download as required,

then install JDK, select the installation directory,

and complete the installation in sequence

Configuration Environment

1. Use search to find the system environment variable configuration, of course there are other ways to enter, I am used to using search
   
2. Select Advanced - Environment Variables
   
3. Configure system variables
   
   First configure JAVA_HOME, configure to the folder where JDK is installed,
   
   and then configure CLASSPATH

   .;%JAVA_HOME%\lib;
   

   
   Then configure Path and create a new record

   %JAVA_HOME%\bin
   

   
   

test

Open cmd, the command operator interface

Simple test, if you can see the version number, it means the installation is successful