Java Month Get getIntevalMonth(String strDate1, String strDate2)

Description

get Inteval Month

License

Open Source License

Declaration

public static int getIntevalMonth(String strDate1, String strDate2) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

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

public class Main {

    public static int getIntevalMonth(String strDate1, String strDate2) {
        int iMonth = 0;
        int flag = 0;
        try {/*from w w  w. j ava 2  s.  c  o  m*/
            Calendar objCalendarDate1 = Calendar.getInstance();
            objCalendarDate1.setTime(DateFormat.getDateInstance().parse(strDate1));

            Calendar objCalendarDate2 = Calendar.getInstance();
            objCalendarDate2.setTime(DateFormat.getDateInstance().parse(strDate2));

            if (objCalendarDate2.equals(objCalendarDate1))
                return 0;
            if (objCalendarDate1.after(objCalendarDate2)) {
                Calendar temp = objCalendarDate1;
                objCalendarDate1 = objCalendarDate2;
                objCalendarDate2 = temp;
            }
            if (objCalendarDate2.get(Calendar.DAY_OF_MONTH) < objCalendarDate1.get(Calendar.DAY_OF_MONTH))
                flag = 1;
            if (objCalendarDate2.get(Calendar.YEAR) > objCalendarDate1.get(Calendar.YEAR)) {
                iMonth = ((objCalendarDate2.get(Calendar.YEAR) - objCalendarDate1.get(Calendar.YEAR)) * 12
                        + objCalendarDate2.get(Calendar.MONTH) - flag) - objCalendarDate1.get(Calendar.MONTH);
            } else {
                iMonth = objCalendarDate2.get(Calendar.MONTH) - objCalendarDate1.get(Calendar.MONTH) - flag;
            }
        } catch (Exception e) {
            System.err.print(e);
        }
        return iMonth;
    }

    public static Date parse(String strDate, String pattern) throws ParseException {
        try {
            return getFormatter(pattern).parse(strDate);
        } catch (ParseException pe) {
            throw new ParseException("Method parse in Class DateUtil  err: parse strDate fail.",
                    pe.getErrorOffset());
        }
    }

    private static SimpleDateFormat getFormatter(String parttern) {
        return new SimpleDateFormat(parttern);
    }
}

Related

1. getCurMonth2Long()
2. getCurrMonthLastDay()
3. getEndDateOfMonth(String yyyymmdd)
4. getEngMonth()
5. getIntervalMonths(String startDate, String endDate)
6. getMonth()
7. getMonth()
8. getMonth()
9. getMonth()