Java Calendar getActualMaximum()方法
java.util.Calendar类的getActualMaximum()方法返回一个整数值，该值是作为参数传递的日历字段的最大可能值。以获得getActualMaximum()方法。例如，DATE字段的最大值为31，而MONTH字段的最大值为11。
语法
public int getActualMaximum(int field)
参数
field-日历字段，例如MONTH，HOUR，DAY_OF_MONTH等。
返回
返回一个整数值，该整数值是作为参数传递的字段的最大值。
抛出
请勿抛出任何异常。
示例1
import java.util.*;
public class CalendargetactualmaximumExample1 {
public static void main(String[] args) {
// create a calendar
Calendar cal1 = Calendar.getInstance();
GregorianCalendar cal2 = (GregorianCalendar) GregorianCalendar.getInstance();
// get the maximum value that year field can have
int year = cal1.getActualMaximum(Calendar.YEAR);
int year2 = cal2.getActualMaximum(GregorianCalendar.YEAR);
System.out.println("Maximum year value of Calendar is:" + year);
System.out.println("Maximum year value of Gregorian Calendar is :" + year2);
}
}
输出:
Maximum year value of Calendar is:292278994
Maximum year value of Gregorian Calendar is :292278994
示例2
import java.util.*;
public class CalendargetactualmaximumExample2 {
public static void main(String[] args) {
// create a calendar
Calendar cal = Calendar.getInstance();
// get the maximum value that year field can have
int month = cal.getActualMaximum(Calendar.MONTH);
System.out.println("Maximum Month:" + month);
int day = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
System.out.println("Maximum DAY:" + day);
}
}
输出:
Maximum Month:11
Maximum DAY:31
示例3
import java.util.*;
public class CalendargetactualmaximumExample3 {
public static void main(String[] args) {
// create a calendar
Calendar cal = Calendar.getInstance();
// get the maximum value that year field can have
int hour = cal.getActualMaximum(Calendar.HOUR);
System.out.println("Maximum HOUR value:" + hour);
int mnt = cal.getActualMaximum(Calendar.MINUTE);
System.out.println("Maximum MINUTE value:" + mnt);
int scnd = cal.getActualMaximum(Calendar.SECOND);
System.out.println("Maximum SECOND value:" + scnd);
}
}
输出:
Maximum HOUR value:11
Maximum MINUTE value:59
Maximum SECOND value:59
