Java Utililty Methods Age Calculate

List of utility methods to do Age Calculate

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Description

The list of methods to do Age Calculate are organized into topic(s).

Method

IntegercalculateAge(Date dob)
calculate Age 
Calendar cal = new GregorianCalendar();
cal.setTime(dob);
Calendar now = new GregorianCalendar();
int res = now.get(Calendar.YEAR) - cal.get(Calendar.YEAR);
if ((cal.get(Calendar.MONTH) > now.get(Calendar.MONTH))
        || (cal.get(Calendar.MONTH) == now.get(Calendar.MONTH)
                && cal.get(Calendar.DAY_OF_MONTH) > now.get(Calendar.DAY_OF_MONTH))) {
    res--;
...
intcalculateAge(Date DOB)
Calculates age w.r.t provided DOB 
int age = -1;
Calendar calDOB = new GregorianCalendar();
calDOB.setTime(DOB);
Calendar calNow = new GregorianCalendar();
calNow.setTime(new Date());
age = calNow.get(Calendar.YEAR) - calDOB.get(Calendar.YEAR);
return age;
intcalculateAgeInMonth(final Date birthDate, final Date asOfDate)
Calculate age based on the birth date and the reference date. 
Calendar birthCalendar = Calendar.getInstance();
birthCalendar.setTime(birthDate);
Calendar todayCalendar = Calendar.getInstance();
todayCalendar.setTime(asOfDate);
int birthYear = birthCalendar.get(Calendar.YEAR);
int todayYear = todayCalendar.get(Calendar.YEAR);
int ageInYear = todayYear - birthYear;
int birthMonth = birthCalendar.get(Calendar.MONTH);
...
intcalculateAgeInWeek(final Date birthDate, final Date asOfDate)
Calculate age based on the birth date and the reference date. 
Calendar birthCalendar = Calendar.getInstance();
birthCalendar.setTime(birthDate);
Calendar todayCalendar = Calendar.getInstance();
todayCalendar.setTime(asOfDate);
long timeDifference = (todayCalendar.getTimeInMillis() - birthCalendar.getTimeInMillis()) / 1000;
int ageInWeek = (int) (timeDifference / ONE_WEEK);
if (timeDifference % ONE_WEEK > ONE_WEEK / 2)
    ageInWeek++;
...
IntegergetAge(Date birthDate, Date controlDate)
age = the_year_of_controlDate - the_year_of_birthDate 
Integer age = -1;
if (birthDate.before(controlDate)) {
    Calendar dateOfBirth = Calendar.getInstance();
    dateOfBirth.setTime(birthDate);
    Calendar theDate = Calendar.getInstance();
    theDate.setTime(controlDate);
    age = theDate.get(Calendar.YEAR) - dateOfBirth.get(Calendar.YEAR);
    Calendar today = Calendar.getInstance();
...
intgetAge(Date birthDay)
get Age 
Calendar cal = Calendar.getInstance();
int yearNow = cal.get(Calendar.YEAR);
int monthNow = cal.get(Calendar.MONTH) + 1;
int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH);
cal.setTime(birthDay);
int yearBirth = cal.get(Calendar.YEAR);
int monthBirth = cal.get(Calendar.MONTH);
int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
...
floatgetAge(Date birthday)
get Age 
Calendar calendar = Calendar.getInstance();
int yearNow = calendar.get(Calendar.YEAR);
int monthNow = calendar.get(Calendar.MONTH);
calendar.setTime(birthday);
int yearBorn = calendar.get(Calendar.YEAR);
int monthBorn = calendar.get(Calendar.MONTH);
int year = yearNow - yearBorn;
if (year >= 1)
...
intgetAge(Date birthday)
get Age 
Calendar birthCal = Calendar.getInstance();
birthCal.setTime(birthday);
Calendar today = Calendar.getInstance();
int age = today.get(Calendar.YEAR) - birthCal.get(Calendar.YEAR);
if (today.get(Calendar.DAY_OF_YEAR) < birthCal.get(Calendar.DAY_OF_YEAR)) {
    age--;
return age;
...
IntegergetAge(Date birthday)
get Age 
if (birthday == null) {
    return null;
Calendar calendar = Calendar.getInstance();
calendar.setTime(birthday);
int startY = calendar.get(Calendar.YEAR);
calendar.setTime(new Date());
int endY = calendar.get(Calendar.YEAR);
...
intgetAge(Date date)
get Age 
Calendar now = Calendar.getInstance();
Calendar dob = Calendar.getInstance();
dob.setTime(date);
if (dob.after(now)) {
    throw new IllegalArgumentException("Can't be born in the future");
int year1 = now.get(Calendar.YEAR);
int year2 = dob.get(Calendar.YEAR);
...