With Java, run multiple commands in the same cmd.exe window

Question

I\'m developing a Java application that will be run on a Windows computer occasionally. At some point I need to run a Cygwin prompt and performs some commands in it.

Answer 1

If you do not need to show a console on the screen, that is easy. You have some simple steps to follow :

• start a Process via `Process cmd = new ProcessBuilder("cmd.exe").start();
• send your commands to cmd.getOutputStream()
• read the result of the commands from cmd.getInputStream() and/or cmd.getErrorStream()
• when finished with it close cmd.getOutputStream(), and if necessary kill the process by cmd.destroy()

Optionnaly, you can have output and error stream to be merged :

Process cmd = new ProcessBuilder("cmd.exe").redirectErrorStream(true).start();

then you simply ignore cmd.getErrorStream() and only read from cmd.getInputStream()