Find total hours between two Dates

Question

I have two Date objects and I need to get the time difference so I can determine the total hours between them. They happen to be from the same day. The result I would like w

Answer 1

Here is the simple method :- Check your Date format,if your date not in this format then change it and pass to this method it will give you a String which is your result. Modify the method as per the requirement.

private String getDateAsTime(String datePrev) {
        String daysAsTime = "";
        long day = 0, diff = 0;
        String outputPattern = "yyyy:MM:dd HH:mm:ss";
        SimpleDateFormat outputFormat = new SimpleDateFormat(outputPattern);
        Calendar c = Calendar.getInstance();
        String dateCurrent = outputFormat.format(c.getTime());
        try {
           Date  date1 = outputFormat.parse(datePrev);
            Date date2 = outputFormat.parse(dateCurrent);
            diff = date2.getTime() - date1.getTime();
            day = TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        if (day == 0) {
            long hour = TimeUnit.HOURS.convert(diff, TimeUnit.MILLISECONDS);
            if (hour == 0)
                daysAsTime = String.valueOf(TimeUnit.MINUTES.convert(diff, TimeUnit.MILLISECONDS)).concat(" minutes ago");
            else
                daysAsTime = String.valueOf(hour).concat(" hours ago");
        } else {
            daysAsTime = String.valueOf(day).concat(" days ago");
        }
        return daysAsTime;
    }

Hope this will help,