title: How to sum total number of hours ,minutes,seconds in java?
body: <p>Am having a doubt on how to sum total number of hours minutes seconds in java for example i have 160:00:00 and 24:00:00 and 13:50:00 and 00:10:00 i need to get grand sum like 198:00:00 how can i calculate this so far what i have tried is</p>
  
  <pre><code> for(int i=0;i&lt;addnoteobj.size();i++){
  
  
              String s =  addnoteobj.get(i).getDuration();
              SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm:ss");
              simpleDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
              String[] tokens = s.split(":");
              int hours = Integer.parseInt(tokens[0]);
              int minutes = Integer.parseInt(tokens[1]);
              int seconds = Integer.parseInt(tokens[2]);
               duration = 3600 * hours + 60 * minutes + seconds;
             int j = duration/3600;
             int h= (duration%3600) / 60;
             int m = (duration % 60);
  
  
             hourss=hourss+j;
             mm=mm+h;
             sss=sss+m;
  
             date3 = hourss + ":" + mm + ":" + ss;
              String time = simpleDateFormat.format(new Date(duration*1000L));
              Log.d("dat",time);
  
  
              try {
                      date=simpleDateFormat.parse(s);
                      ss=ss+date.getTime();
                      date3 = simpleDateFormat.format(new Date(ss));
                    // total=dates.getTime();
                      Log.d("time",date3);
                  } catch (ParseException e) {
                      e.printStackTrace();
                  }
  
  
          }
  </code></pre>
  
  <p>But i cannot achieve this how to do this am having total hours in list how to get total hours thanks in advance</p>