package  test;

 import  java.io.*;

 public   class  RunBat {
   public   static   void  main(String[] args) {
    String cmd = "cmd /c dir";
    Process pr =  null ;
     try  {
      pr = Runtime.getRuntime().exec(cmd);
      BufferedReader in =  new  BufferedReader( new  InputStreamReader(pr.getInputStream()));

      String line;
       while  ((line = in.readLine()) !=  null ) {
        System.out.println(line);
      }
    }  catch  (Exception e) {
      e.printStackTrace();
    }

    /*
      d:\\udir.bat
      ------------
      dir c:\
    */
    cmd = "cmd /c c:\\udir.bat";
     try  {
      pr = Runtime.getRuntime().exec(cmd);
      BufferedReader in =  new  BufferedReader( new  InputStreamReader(pr.getInputStream()));

      String line;
       while  ((line = in.readLine()) !=  null ) {
        System.out.println(line);
      }
    }  catch  (Exception e) {
      e.printStackTrace();
    }
  }
}