Installation of JDK on Windows and environment variable settings

One, JDK installation

JDK version: jdk1.8.0_144 download link: https://pan.baidu.com/s/1eS2bFhg Password: e3q1

After downloading the JDK click Install, you can modify the JDK installation directory as needed, as follows:

　　

For example, I changed the installation directory to: F:\Java\jdk1.8.0_144

Click OK and the next step to complete the installation.

Note: There are two installation prompts during installation, the first is the JDK installation, and the second is the JRE installation. It is recommended that you install them again under the same Java folder.

Complete the post-installation directory:

　　

Second, the environment variable configuration

Open cmd in Run, enter command java-version the description has not been configured for environment variables

　　

Environment variable configuration location: Computer → properties → advanced system settings → advanced → environment variables

　　

　　

1. New environment variable Java_home

Variable name: java_home

Variable value: F:\Java\jdk1.8.0_144 (JDK's installation directory)

　　

2. Modify the variable Path

Increase in the value of the variable:%java_home%\bin;%java_home%\jre\bin;

Note that the original path of the variable value at the end of the number, if not, enter first, and then enter the above code.

　　

3, x new environment variable CLASSPATH

Variable name: CLASSPATH

Variable value:.; %java_home%\lib;%java_home%\lib\tools.jar

Notice that there's a little bit ahead

　　

Open cmd again, enter command java-version

　　

Configuration complete

Installation of JDK on Windows and environment variable settings