Java中的 Period minusDays() 方法及示例
Java中 Period 类的 minusDays() 方法用于从该 Period 中减去天数。此函数仅在 DAYS 上运行,不会影响 YEAR 和 MONTH。
句法:
public Period minusDays(long daysToSubtract)
参数:此方法接受单个参数daysToSubtract ,它是要从周期中减去的天数。
返回值:此方法根据输入中提供的周期返回一个周期
减去指定的天数。它不能为空。
异常:它抛出一个ArithmeticException 。如果发生数字溢出,则会捕获此异常。
下面的程序说明了上述方法:
程序 1 :
// Java code to show the function minusDays()
// to subtract the number of days from given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodClass {
// Function to subtract two given periods
static void subtractDays(Period p1, int daystoSubtract)
{
System.out.println(p1.minusDays(daystoSubtract));
}
// Driver Code
public static void main(String[] args)
{
// Defining first period
int year = 4;
int months = 11;
int days = 10;
Period p1 = Period.of(year, months, days);
int daystoSubtract = 8;
subtractDays(p1, daystoSubtract);
}
}
输出:
P4Y11M2D
方案二:
// Java code to show the function minusDays()
// to subtract the number of days from given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodClass {
// Function to subtract two given periods
static void subtractDays(Period p1, int daystoSubtract)
{
System.out.println(p1.minusDays(daystoSubtract));
}
// Driver Code
public static void main(String[] args)
{
// Defining first period
int year = -4;
int months = -11;
int days = 0;
Period p1 = Period.of(year, months, days);
int daystoSubtract = 8;
subtractDays(p1, daystoSubtract);
}
}
输出:
P-4Y-11M-8D
参考:https: Java/time/Period.html#minusDays-long-