Java Date Now getCurrentAgeByBirthdate(String brithday)

Description

get Current Age By Birthdate

License

Apache License

Declaration

public static int getCurrentAgeByBirthdate(String brithday) throws ParseException, Exception 

Method Source Code

//package com.java2s;
/*//from   w  ww.  jav  a2  s .c  om
 *  Copyright  sunflower
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;

public class Main {
    public static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    public static int getCurrentAgeByBirthdate(String brithday) throws ParseException, Exception {
        try {
            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(dateFormat.parse(brithday));
            int yearBirth = cal.get(Calendar.YEAR);
            int monthBirth = cal.get(Calendar.MONTH);
            int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
            int age = yearNow - yearBirth;
            if (monthNow <= monthBirth) {
                if (monthNow == monthBirth) {
                    if (dayOfMonthNow < dayOfMonthBirth) {
                        age--;
                    }
                } else {
                    age--;
                }
            }
            return age;
        } catch (Exception e) {
            return 0;
        }
    }
}

Related

1. currentSystemDate()
2. currentXdsDate(int format)
3. getCurrent()
4. getCurrent()
5. getCurrentAccurateDateTimeStringForPrint()
6. getCurrentCacheTime()
7. getCurrentCalendar()
8. getCurrentCompactTime()
9. getCurrentDataInFormat(String pattern)