Java GregorianCalendar getLeastMaximum()用法及代码示例

java.util.GregorianCalendar.getLeastMaximum()方法是Java中的内置函数，该函数返回此GregorianCalendar实例的日历字段的最低最大值，作为参数传递给该函数。任何可能的时间值的最低最大值定义为get方法返回的最大值，其中考虑了getFirstDayOfWeek，getMinimalDaysInFirstWeek，getGregorianChange和getTimeZone方法的当前值。

用法:

public int getMaximum(int calendarfield)

参数：该函数接受一个整数类型的强制性参数calendarfield，该整数类型引用该函数将返回其最小值的日历字段。

返回值：此方法返回一个整数值，该值等于指定日历字段的最低最大值。

例子：

Input : DAY_OF_MONTH
Output : 28

Input : WEEK_OF_MONTH
Output : 3

以下程序说明了java.util.GregorianCalendar.getMaximum()函数的工作：

示例1:

// Java program to illustrate getLeastMaximum() 
  
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()); 
  
      // Get lowest maximum for WEEK_OF_MONTH 
      int maxm = cal.getLeastMaximum( 
                   GregorianCalendar.WEEK_OF_MONTH); 
      System.out.println("Lowest Maximum for"+ 
                   " WEEK_OF_MONTH field :" + maxm); 
  
      // Get lowest maximum for DAY_OF_MONTH 
      maxm = cal.getLeastMaximum( 
                    GregorianCalendar.DAY_OF_MONTH); 
      System.out.println("Lowest Maximum for"+ 
                     " DAY_OF_MONTH field:" + maxm); 
   } 
}

输出：

Current Date and Time : Wed Aug 01 06:48:43 UTC 2018
Lowest Maximum for WEEK_OF_MONTH field :3
Lowest Maximum for DAY_OF_MONTH field:28

示例2:

// Java program to illustrate getLeastMaximum() 
  
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()); 
  
      // Get lowest maximum for YEAR 
      int maxm = cal.getLeastMaximum( 
                           GregorianCalendar.YEAR); 
      System.out.println("Lowest Maximum for"+ 
                           " YEAR field :" + maxm); 
  
      // Get lowest maximum for HOUR_OF_DAY 
      maxm = cal.getLeastMaximum( 
                    GregorianCalendar.HOUR_OF_DAY); 
      System.out.println("Lowest Maximum for"+ 
                     " HOUR_OF_DAY field:" + maxm); 
   } 
}

输出：

Current Date and Time : Wed Aug 01 06:48:45 UTC 2018
Lowest Maximum for YEAR field :292269054
Lowest Maximum for HOUR_OF_DAY field:23

参考：https://docs.oracle.com/javase/7/docs/api/java/util/GregorianCalendar.html#getLeastMaximum()

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注：本文由纯净天空筛选整理自RICHIK BHATTACHARJEE大神的英文原创作品 GregorianCalendar getLeastMaximum() Method in Java。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。