How to get java getRuntime().exec() to run a command-line program with arguments?

Question

I\'ve been trying to write a java program that uses the Runtime.getRuntime().exec() method to use the command-line to run an instance of the program \"tesseract

Answer 1

You are not capturing STDERR, so when errors occur you do not receive them from STDOUT (which you are capturing). Try:

BufferedReader input = new BufferedReader(new InputStreamReader(
               pr.getErrorStream()));

Answer 2

another workaround is give complete installation path of file like /usr/local/Cellar/tesseract/3.02.02/bin/tesseract"

Answer 3

Another workaround without having to recompile and deploy is using the old DOS style paths for e.g C:\Program Files would be C:\Progra~1. Of course this will be helpful only if you are reading the paths from a config file or DB and registry etc.

Answer 4

well tesseract is external command so you do not need to use it with cmd. Add tesseract to environment variables. Use direct command as :

String[] commands = {"tesseract", imageFilePath, outputFilePath };

Exist status 1 means Incorrect function. See process exit status