date - how to find the total time taken for a process in Java -

i have 2 java date time values , want know total time taken process.

private static date crawlstartdate,crawlenddate,totalcrawltime; 

how can that? time format yyyymmddhhmmss

thanks

you can try one..

   public static void main(string[] argv) {      long lstarttime = new date().gettime(); // start time      createarray(); // tasks eat time      long lendtime = new date().gettime(); // end time      long difference = lendtime - lstarttime; // check different      system.out.println("elapsed milliseconds: " + difference);  }  public static void createarray() {      try {         thread.sleep(2000);     } catch (interruptedexception e) {         e.printstacktrace();     }      string sarray[] = new string[1000000];      (int = 0; < 1000000; i++)         sarray[i] = "array " + i;  }