How to give long paths in java runtime exec method?

Question

I am trying to use

Runtime.getRuntime().exec("C:\\Program Files\\AutoIt3\\autoit3.exe ./WindowsAuthenticationLogin.au3");

in java

But failing and displaying fail message as

Cannot run program "C:\Program"

Please tell me how can I give correct path to make it work

Answer 1

The path needs to have escaped quotes around it if it contains spaces. Alternately, for Program Files directory, you can also use this:

Runtime.getRuntime().exec("C:\\Progra~1\\AutoIt3\\autoit3.exe ./WindowsAuthenticationLogin.au3");

Answer 2

you need to escape the first space with \\

Runtime.getRuntime().exec("C:\\Program\\ Files\\AutoIt3\\autoit3.exe ./WindowsAuthenticationLogin.au3");