how to get number of years between two dates in android

Question

hello i am creating an android app in which i have two string of different dates now i want to get number of years between these dates anyone please help me how i can do this? here is my code

                    String  birthday=p.getString("BirthDay");

                     Log.i("bd", String.valueOf(birthday));
                     Calendar c = Calendar.getInstance();


                     SimpleDateFormat df = new SimpleDateFormat("dd MMM, yyyy");
                     final String formattedDate = df.format(c.getTime());
                     Log.i("formattedDate", String.valueOf(formattedDate));

where birthday is saved date and formatteddate is current date now i want difference between these

Parse the strings to dates, subtract them, then get the years from the result. All date/times in Android are longs based on the Unix epoch. — Simon, Nov 27 '14 at 11:24
you can get the year from the calendar with `c.get(Calendar.YEAR)`. — Blackbelt, Nov 27 '14 at 11:26

score 1 · Answer 1 · answered Nov 27 '14 at 11:30

1

Please try this code

    String birthday = p.getString("BirthDay");
    Calendar calendarBirthday = Calendar.getInstance();
    SimpleDateFormat sdf = new SimpleDateFormat("dd MMM, yyyy");
    calendarBirthday.setTime(sdf.parse(birthday));
    Calendar calendarNow = Calendar.getInstance();
    int yearNow = calendarNow.get(Calendar.YEAR);
    int yearBirthday = calendarBirthday.get(Calendar.YEAR);
    int years = yearNow - yearBirthday;

answered Nov 27 '14 at 11:30

Inneke De Clippel

956
6
14

using this code i got this java.text.ParseException: Unparseable date: "1 January,2000 " (at offset 10) – John Nov 27 '14 at 11:35
You will need to change the format string in the simpledateformat. It will probably be something like this: "dd MMMM,yyyy" – Inneke De Clippel Nov 27 '14 at 11:42
i did this but same exception :( – John Nov 27 '14 at 11:45

score -1 · Answer 2 · answered Nov 27 '14 at 11:29

-1

int getYear(Date date1,Date date2){ 
  SimpleDateFormat simpleDateformat=new SimpleDateFormat("yyyy");
  Integer.parseInt(simpleDateformat.format(date1));

  return Integer.parseInt(simpleDateformat.format(date2))- Integer.parseInt(simpleDateformat.format(date1));

}

answered Nov 27 '14 at 11:29

Miki Franko

687
3
7

Please add some explanation to your answer. – DontVoteMeDown Nov 27 '14 at 11:50

score -1 · Answer 3 · answered Nov 27 '14 at 11:34

pass your date of birth

public int getAge (int _year, int _month, int _day) {

    GregorianCalendar cal = new GregorianCalendar();
    int y, m, d, a;         

    y = cal.get(Calendar.YEAR);
    m = cal.get(Calendar.MONTH) + 1;
    d = cal.get(Calendar.DAY_OF_MONTH);
    cal.set(_year, _month, _day);
    a = y - cal.get(Calendar.YEAR);
    if ((m < cal.get(Calendar.MONTH))
                    || ((m == cal.get(Calendar.MONTH)) && (d < cal
                                    .get(Calendar.DAY_OF_MONTH)))) {
            --a;
    }
    if(a < 0)
            throw new IllegalArgumentException("Age < 0");
    return a;
}

will you please tell me how to get year form this "15 July, 1990" — John, Nov 27 '14 at 12:11

how to get number of years between two dates in android

3 Answers3