1. create system variable

java jdk environment variables_java

 

 

2. edit the system path

 java jdk environment variables_java_02

 

 

note: ;%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;

3. create classpath

java jdk environment variables_其他_03

 

 note:  .;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib;