Java 中的 GregorianCalendar getMaximum()方法

原文:https://www . geesforgeks . org/gregoriancalendar-get maximum-method-in-Java/

java . util . Gregoriancalendar . GetMaximum()方法是 Java 中的内置函数，它返回作为参数传递给函数的特定日历字段的最大值。对于任何可能的时间值，它都是 get()方法返回的最高值，同时考虑 getFirstDayOfWeek()，getMinimalDaysInFirstWeek()，getGregorianChange()和 getTimeZone()方法的当前值。

语法:

public int getMaximum**(int calendarfield*)*

参数:该函数接受一个强制参数日历字段，该参数的最大值该日历日历字段实例将由该函数返回。

返回值:该方法返回这个公历实例的指定日历字段的最大值。

示例:

Input : DAY_OF_MONTH
Output : 31

Input : WEEK_OF_MONTH
Output : 6

下面的程序说明了 Java . util . gregoriancalendar . getmaximum()函数: 程序 1:

// Java Program to illustrate getMaximum() function

import java.io.*;
import java.util.*;

class GFG {
    public static void main(String[] args)
    {

        // Create a new calendar
        GregorianCalendar cal = (GregorianCalendar)
                     GregorianCalendar.getInstance();

        // Display the current date and time
        System.out.println("Current Date and Time : "
                                    + cal.getTime());

        // Display maximum for WEEK_OF_MONTH
        int maxm = cal.getMaximum
                   (GregorianCalendar.WEEK_OF_MONTH);
        System.out.println("Maximum for WEEK_OF_MONTH field :"
                                                     + maxm);

        // Display maximum for DAY_OF_MONTH
        maxm = cal.getMaximum
                    (GregorianCalendar.DAY_OF_MONTH);
        System.out.println("Maximum for DAY_OF_MONTH field:"
                                                    + maxm);
    }
}

Output:

Current Date and Time : Fri Jul 27 12:44:38 UTC 2018
Maximum for WEEK_OF_MONTH field :6
Maximum for DAY_OF_MONTH field:31

程序 2:

// Java Program to illustrate getMaximum() function

import java.io.*;
import java.util.*;

class GFG {
    public static void main(String[] args)
    {

        // Create a new calendar
        GregorianCalendar cal = (GregorianCalendar)
                          GregorianCalendar.getInstance();

        // Display the current date and time
        System.out.println("Current Date and Time : "
                           + cal.getTime());

        // Display maximum for YEAR
        int maxm = cal.getMaximum(GregorianCalendar.YEAR);
        System.out.println("Maximum for YEAR field :"
                           + maxm);

        // Display maximum for HOUR_OF_DAY
        maxm = cal.getMaximum(GregorianCalendar.HOUR_OF_DAY);
        System.out.println("Maximum for HOUR_OF_DAY field:"
                           + maxm);
    }
}

Output:

Current Date and Time : Fri Jul 27 12:44:40 UTC 2018
Maximum for YEAR field :292278994
Maximum for HOUR_OF_DAY field:23

参考:https://docs . Oracle . com/javase/7/docs/API/Java/util/gregoriancalendar . html # getMaximum()

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