1. First download jdk from the official website, and create the installation directories of jdk and jre on your own computer. This article is in:
D:\Tools\MyJava\ JDK8\jdk, D:\Tools\MyJava\JDK8\jre, directory, select the path to install by default.
2. Right-click "My Computer" -> Select "Properties", open the page and find "Advanced System Settings" and click in.
3. Click "Environment Variables" and create a new JAVA_HOME in the system environment variable. The variable value is the root path of your jdk installation
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4. Then, create a new CLASSPATH environment variable
5. Finally, find the original PATH path and add %JAVA_HOME%\bin and %JAVA_HOME%\jre\bin, as shown in the figure:
After the above configuration is completed , click Confirm. It just depends on the configuration.
6. After opening cmd, enter java -version, as follows:
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