Java 中的 Period plus()方法，示例
原文:https://www . geesforgeks . org/period-plus-method-in-Java-with-examples/
Java 中 Period 类的 plus()方法用于将给定数量的周期添加到指定的周期中。该功能在年、月和日分别运行。
注意:不进行归一化。12 个月和 1 年是不同的。
语法:
public Period plus(TemporalAmount amountToAdd)
参数:此功能接受单个参数金额添加，即金额添加至期间。它不能为空。
返回值该函数根据给定的周期返回一个周期，加上请求的周期，该值不能为空。
例外:
- Date and time exception : If the specified amount has a non-ISO chronology or contains invalid units, this exception will be returned.
- Arithmetic exception : If there is a numerical overflow, catch the exception.
下面的程序说明了上述方法:
程序 1 :
// Java code to show the function plus()
// to subtract the two given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodDemo {
// Function to subtract two given periods
static void addPeriod(Period p1, Period p2)
{
System.out.println(p1.plus(p2));
}
// 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);
// Defining second period
int year1 = 2;
int months1 = 7;
int days1 = 8;
Period p2 = Period.of(year1, months1, days1);
addPeriod(p1, p2);
}
}
输出:
P6Y18M18D
程序二:期间可以为负数。
// Java code to show the function plus()
// to subtract the two given periods
import java.time.Period;
import java.time.temporal.ChronoUnit;
public class PeriodDemo {
// Function to add two given periods
static void addPeriod(Period p1, Period p2)
{
System.out.println(p1.plus(p2));
}
// Driver Code
public static void main(String[] args)
{
// Defining second period
int year1 = 2;
int months1 = 7;
int days1 = 8;
Period p1 = Period.of(year1, months1, days1);
// Defining first period
int year = 4;
int months = 11;
int days = 10;
Period p2 = Period.of(year, months, days);
addPeriod(p1, p2);
}
}
输出:
P6Y18M18D
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