Since Java was sold to Oracle, updates are getting faster and faster, and version iterations are getting more and more frequent. The pages and flow in the previous tutorial have also changed, so update it. This article uses the latest version of Java SE 15 as the template.

1. Download

Java SE 15 address

www.oracle.com/java/techno…

Windows 64-bit JDK 15.0.1_windows-x64_bin.exe

If you need to change the installation address, you can directly change it to the preset address (the installation directory cannot contain Chinese characters).

The Java SDK installation is complete.

2. Configure environment variables

1. The following variables need to be configured:

The variable name

The path

note

JAVA_HOME

C: \ Program Files \ Java \ JDK – 15.0.1

Path

%JAVA_HOME%\bin

Path

%JAVA_HOME%\jre\bin

CLASSPATH

.; %JAVA_HOME%\lib; %JAVA_HOME%\lib\dt.jar; %JAVA_HOME%\lib\tools.jar

2. Modify environment variables

Configuration path: My Computer -> right-click properties -> Select Advanced System Settings

Go to environment variables –> New –> JAVA_HOME and CLASSPATH
Select Path from the system variable and click Edit to add Path from the table above