Java Period minusMonths()方法及示例
Java中Period类的minusMonths()方法是用来从给定的周期中减去指定的月份。该方法只对月份进行操作,不影响其他两个年份和日期。
语法
public Period minusMonths(long monthsToSubtract)
参数: 该方法接受一个参数monthsToSubtract,它是要从周期中减去的月数。
返回值: 该方法返回一个基于输入中提供的周期减去指定月数的周期。它不能是空的。
异常: 它抛出一个 ArithmeticException 如果发生数字溢出,这个异常将被捕获。
下面的程序说明了上述方法。
程序1 :
// Java code to show the function minusMonths()
// to subtract the number of months from given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodClass {
// Function to subtract two given periods
static void subtractMonths(Period p1, int monthstoSubtract)
{
System.out.println(p1.minusMonths(monthstoSubtract));
}
// 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 monthstoSubtract = 8;
subtractMonths(p1, monthstoSubtract);
}
}
输出:
P4Y3M10D
程序2 :
// Java code to show the function minusMonths()
// to subtract the number of months from given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodClass {
// Function to subtract two given periods
static void subtractMonths(Period p1, int monthstoSubtract)
{
System.out.println(p1.minusMonths(monthstoSubtract));
}
// 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 monthstoSubtract = -8;
subtractMonths(p1, monthstoSubtract);
}
}
输出:
P-4Y-3M-10D
参考资料 : https://docs.oracle.com/javase/8/docs/api/java/time/Period.html#minusMonths-long-