How to run a .jar file from inside another java program?

Question

i have a .jar file, which I can run on the command line:

java -jar myFile.jar argument1

I want to save the output of this .jar as a String vari

Answer 1

If you can't include the other jar,

you can use something like that

Runtime re = Runtime.getRuntime();
BufferedReader output;          
try{ 
  cmd = re.exec("java -jar MyFile.jar" + argument); 
  output =  new BufferedReader(new InputStreamReader(cmd.getInputStream()));
} catch (IOException ioe){
  ioe.printStackTrace();
}
String resultOutput = output.readLine();

I know my code isn't perfect like the catching exception, etc but I think this could give you a good idea.