I tried it all night last night, I got an experience.
Runtime.exec ("text")
The content of the text must be executed on the DOS or platform, such as Runtime.exec ("Move C: //a.txt C: /////") will definitely not perform, so you can only use a reminder method, Move c: /a.txt C: / B / Write inside a batch file T, then execute:
Runtime.exec ("T.BAT:")
