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Thanks this worked for me:


ProcessBuilder pb = new ProcessBuilder("java", "-jar", jarname);
pb.directory(new File(jarname).getParentFile());

try{

pb.start();

Don't know if this would belong in I/O, sorry if it doesn't.

I have a game launcher program and I need it to launch my game after patching when I click on a button. I want to be able to execute...