How to execute dos command with parameters in java

Question

I want to execute an external dos command based on a java program, if there is any way, please help me

Answer 1

String[] options = new String[]{"option1", "option2"}; Runtime.getRuntime().exec("command", options); 

Answer 2

The next bit of code will run the dir command and then print for you as well as an error. Taken and adapted from ( http://www.devdaily.com/java/edu/pj/pj010016 )

 import java.io.*; public class JavaRunCommand { public static void main(String args[]) { String s = null; try { // run the Windows command (dir) // using the Runtime exec method: Process p = Runtime.getRuntime().exec("dir"); 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.println("Here is the standard error of the command (if any):\n"); while ((s = stdError.readLine()) != null) { System.out.println(s); } System.exit(0); } catch (IOException e) { System.out.println("exception happened - here what I know: "); e.printStackTrace(); System.exit(-1); } } }