dos command:
- c: switch drive letter (case is not distinguished)
- dir View catalog files
- cd x move to x folder
- . Current directory
- …Upper directory
- cls = clear in Linux
- Arrow keys ↑↓ switch history commands
- tab completion command
- md=mkdir create directory
- rd=removedir delete directory
- copy copy files
- del delete file
Install jdk:
Keep clicking Next, the installation directory is the default
Configure java environment:
right click on this computer, click properties,
click advanced system settings
Enter in CLASSPATH.; Then enter the path of the lib directory of jdk and the path of tools.jar under lib
Enter the jdk path in JAVA_HOME
Enter the path of the bin directory under jdk and the path of the bin directory under jre in the PATH
