how to run a command at terminal from java program?

Question

I need to run a command at terminal in Fedora 16 from a JAVA program. I tried using

Runtime.getRuntime().exec(\"xterm\"); 

but this just op

Answer 1

You don't actually need to run a command from an xterm session, you can run it directly:

String[] arguments = new String[] {"/path/to/executable", "arg0", "arg1", "etc"};
Process proc = new ProcessBuilder(arguments).start();

If the process responds interactively to the input stream, and you want to inject values, then do what you did before:

OutputStream out = proc.getOutputStream();  
out.write("command\n");  
out.flush();

Don't forget the '\n' at the end though as most apps will use it to identify the end of a single command's input.