Calculate age from BirthDate

Question

I have DatePicker Dialog, When I select date at that time I want to calculate age it\'s working but when I select date of current year at that time it showing the -1 age instead

Answer 1

      private void calculateAge() {
    age.calcualteYear();
    age.calcualteMonth();
    age.calcualteDay();
    age.calculateMonths();
    age.calTotalWeeks();
    age.calTotalHours();
    age.calTotalMins();
    age.calTotalSecs();
    age.calTotalMilsecs();
    // Toast.makeText(getContext(), "click the resulted button"+age.getResult() , Toast.LENGTH_SHORT).show();
    result.setText("AGE (DD/MM/YY) :" + age.getResult());
}

after that create one class

 public class AgeCalculation {
private int startYear;
private int startMonth;
private int startDay;
private int endYear;
private int endMonth;
private int endDay;
private int resYear;
private int resMonth;
private int resDay;
private Calendar start;
private Calendar end;
public String getCurrentDate()
{
      end=Calendar.getInstance();
      endYear=end.get(Calendar.YEAR);
      endMonth=end.get(Calendar.MONTH);
      endMonth++;
      endDay=end.get(Calendar.DAY_OF_MONTH);
      return endDay+":"+endMonth+":"+endYear;
}
public void setDateOfBirth(int sYear, int sMonth, int sDay)
{
 startYear=sYear;
 startMonth=sMonth;
 startDay=sDay;

}
public void calcualteYear()
{
    resYear=endYear-startYear/(365);

}

public void calcualteMonth()
{
    if(endMonth>=startMonth)
    {
         resMonth= endMonth-startMonth;
    }
    else
    {
        resMonth=endMonth-startMonth;
        resMonth=12+resMonth;
        resYear--;
    }

}
public void  calcualteDay()
{

    if(endDay>=startDay)
    {
         resDay= endDay-startDay;
    }
    else
    {
        resDay=endDay-startDay;
        resDay=30+resDay;
        if(resMonth==0)
        {
            resMonth=11;
            resYear--;
        }
        else
        {
            resMonth--;
        }

    }
}

public String getResult()
{
    return resDay+":"+resMonth+":"+resYear;
}