String filepath = "D:";
        String filename = "hello.bat";
        try {
            ProcessBuilder p = new ProcessBuilder();
            p.directory(new File(filepath));
            p.command("cmd.exe", "/c ", filename);
            Process process = p.start();
            process.waitFor();
            InputStream in = process.getInputStream();
            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            int c = -1;
            while((c = in.read()) != -1)
            {
                baos.write(c);
            }

            String response = new String(baos.toByteArray());
            System.out.println("Response From Exe : "+response);