How to sum total number of hours ,minutes,seconds in java?
<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>