Running system command through Java

fetch1 — Wed, 16 Sep 2009 16:20:41 +0000

Running system commands through Java

Try the below code (for Linux OS) & you’ll get the listing of files & folders from current directory

If you want to open & close CD rom infinitely,
Just replace ‘ls’ command with the cd ROM opening cmd
Also for CD ROM closing …. Enclose them in infinite loop … thats all……

(You have to maintain a boolean flag for open & close)

try {

Process p = Runtime.getRuntime().exec(“ls”); //Line to talk with H/W

BufferedReader stdInput = new BufferedReader(new
InputStreamReader(p.getInputStream()));

BufferedReader stdError = new BufferedReader(new
InputStreamReader(p.getErrorStream()));

// read the output from the command

System.out.println(“Here is the standard output of the command:\n”);
while ((s = stdInput.readLine()) != null) {
System.out.println(s);
}

// read any errors from the attempted command

System.out.print(“Here is the standard error of the command (if any): “);
while ((s = stdError.readLine()) != null) {
System.out.println(s);
}

System.exit(0);
}
catch (IOException e) {}

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Running system command through Java

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