Java 中的日期格式 getCalendar()方法,带示例

原文:https://www . geesforgeks . org/dateform-get calendar-in-Java-method-with-examples/

Java 中 DateFormat 类getCalendar() 方法用于获取与该日期/时间格式对象关联的日历。

语法:

public Calendar getCalendar()

参数:该方法不取任何参数。

返回值:该方法返回该日期格式对象的日历实例。

下面的程序说明了 getCalendar()方法在 Java 中的使用: 示例 1:

// Java code to illustrate
// getCalendar() method

import java.text.*;
import java.util.*;

public class DateFormat_Demo {
    public static void main(String[] argv)
    {
        // Initializing the first formatter
        DateFormat DFormat
            = DateFormat.getDateTimeInstance();

        // String formatting
        String str = DFormat.format(new Date());

        // Displaying the Calendar
        System.out.println(DFormat.getCalendar());
    }
}

Output:

java.util.GregorianCalendar[time=1553691245240, areFieldsSet=true, areAllFieldsSet=true,
lenient=true, zone=sun.util.calendar.ZoneInfo[id="Etc/UTC", offset=0, dstSavings=0,
useDaylight=false, transitions=0, lastRule=null], firstDayOfWeek=1, minimalDaysInFirstWeek=1,
ERA=1, YEAR=2019, MONTH=2, WEEK_OF_YEAR=13, WEEK_OF_MONTH=5, DAY_OF_MONTH=27, DAY_OF_YEAR=86,
DAY_OF_WEEK=4, DAY_OF_WEEK_IN_MONTH=4, AM_PM=1, HOUR=0, HOUR_OF_DAY=12, MINUTE=54, SECOND=5,
MILLISECOND=240, ZONE_OFFSET=0, DST_OFFSET=0]

例 2:

// Java code to illustrate
// getCalendar() method

import java.text.*;
import java.util.*;

public class DateFormat_Demo {
    public static void main(String[] argv)
    {
        // Initializing the first formatter
        DateFormat DFormat
            = new SimpleDateFormat("MM/ dd/ yy");

        // String formatting
        String str = DFormat.format(new Date());

        // Displaying the Calendar
        System.out.println(DFormat.getCalendar());
    }
}

Output:

java.util.GregorianCalendar[time=1553691264669, areFieldsSet=true, areAllFieldsSet=true,
lenient=true, zone=sun.util.calendar.ZoneInfo[id="Etc/UTC", offset=0, dstSavings=0,
useDaylight=false, transitions=0, lastRule=null], firstDayOfWeek=1, minimalDaysInFirstWeek=1,
ERA=1, YEAR=2019, MONTH=2, WEEK_OF_YEAR=13, WEEK_OF_MONTH=5, DAY_OF_MONTH=27, DAY_OF_YEAR=86,
DAY_OF_WEEK=4, DAY_OF_WEEK_IN_MONTH=4, AM_PM=1, HOUR=0, HOUR_OF_DAY=12, MINUTE=54, SECOND=24,
MILLISECOND=669, ZONE_OFFSET=0, DST_OFFSET=0]

参考:https://docs . Oracle . com/javase/7/docs/API/Java/text/dateformat . html # getCalendar()