Java Calendar Calculate calcTime(Date end, Date start, int calendarField)

Description

calc Time

License

Open Source License

Declaration

public static long calcTime(Date end, Date start, int calendarField) 

Method Source Code

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

import java.util.Calendar;
import java.util.Date;

public class Main {

    public static long calcTime(Date end, Date start, int calendarField) {
        if (end == null || start == null)
            return 0;
        long diff = end.getTime() - start.getTime();

        switch (calendarField) {
        case Calendar.MILLISECOND:
            return diff;

        case Calendar.SECOND:
            return diff / 1000;

        case Calendar.MINUTE:
            return diff / (1000 * 60);

        case Calendar.HOUR:
            return diff / (1000 * 60 * 24);
        default://from  ww w.ja v a2 s .c  om
            throw new RuntimeException("Not support.");
        }
    }
}

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2. cal2Str(Calendar pCal)
3. calcAge(Calendar dateOfBirth, Calendar now)
4. calcDifferenceAsDays(Calendar aBaseDate, Calendar aTargetDate)
5. calcDifferenceAsYearsPrivate(Calendar aBaseDate, Calendar aTargetDate)
6. calcTimezone(Calendar cal)
7. calculateDuration(Calendar para_c1, Calendar para_c2)
8. calculateHourDiff(Calendar cal1, Calendar cal2)
9. calculateMinimalDaysInFirstWeek(Calendar calendar)