Question

Everything I read says that the only way to call a batch file from within a java program is to do something like this:

Process p = Runtime.getRuntime().exec("cmd /c start batch.bat");

From what I understand this creates a process to run CMD.exe, which in turn creates a process to run the batch file. However, the CMD.exe process appears to exit once it has instantiated the batch file process.

How can I confirm that the batch file has completed before the CMD process exits?

Answer 1

What jeb said, or try passing the /wait parameter to start. That should cause start to wait till the batch process completes. Try it at the command line first — faster than rebuilding your Java app.