jdk installation and configuration environment

jdk installation

Choose whether to change the installation directory according to your own computer needs. The blogger’s solid-state hard drive is relatively small. In order not to slow down the computer, choose to install to the mechanical disk (change the directory, remember, useful) and


change it to the same Java file. The


installation is complete.

jdk environment configuration

This computer-right click-properties

The variable name is JAVA_HOME, and the variable value is filled with the final path of the JDK installation

Find the path system variable, double-click

Add directly at the end; %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;
also add the semicolon before and after

Add
Variable name CLASSPATH
variable value%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools .jar

Test jdk

Open the cmd command console, enter java,

enter javac,

enter java -version (symbol-there is a space in front of it)

are normal, which means the installation is successful