Java Convert ZonedDateTime to Calendar

import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.GregorianCalendar;

public class ConvertZonedDateTimeToCalendarExample1 {
    public static void main(String... args) {
        ZonedDateTime zonedDateTime = ZonedDateTime.now();

        Calendar calendar = GregorianCalendar.from(zonedDateTime);

        System.out.println("ZonedDateTime: " + zonedDateTime);
        System.out.println("Calendar: " + calendar);
        System.out.println("Year of Calendar: " + calendar.get(Calendar.YEAR));
        System.out.println("Month of Calendar(January is 0):" + calendar.get(Calendar.MONTH));
        System.out.println("Day of Month of Calendar:" + calendar.get(Calendar.DAY_OF_MONTH));
    }
}

ZonedDateTime: 2022-05-07T00:05:42.584450600+07:00[Asia/Bangkok]
Calendar: java.util.GregorianCalendar[time=1651856742584,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="Asia/Bangkok",offset=25200000,dstSavings=0,useDaylight=false,transitions=3,lastRule=null],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2022,MONTH=4,WEEK_OF_YEAR=18,WEEK_OF_MONTH=1,DAY_OF_MONTH=7,DAY_OF_YEAR=127,DAY_OF_WEEK=7,DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=0,HOUR_OF_DAY=0,MINUTE=5,SECOND=42,MILLISECOND=584,ZONE_OFFSET=25200000,DST_OFFSET=0]
Year of Calendar: 2022
Month of Calendar(January is 0):4
Day of Month of Calendar:7