duration java_Java Duration类| ofDays（）方法与示例

duration java

持续时间Class ofDays()方法 (Duration Class ofDays() method)

ofDays() method is available in java.time package.
ofDays()方法在java.time包中可用。
ofDays() method is used to represent the given number of days in this Duration.
ofDays()方法用于表示此Duration中给定的天数。
ofDays() method is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get an error.
ofDays()方法是一个静态方法，可以使用类名进行访问，如果尝试使用类对象访问该方法，则不会收到错误。
ofDays() method may throw an exception at the time of representing days.
ofDays()方法在表示天数时可能会引发异常。

ArithmeticException: This exception may throw when the given day's value exceeds the length of this Duration.
ArithmeticException：当给定日期的值超过此Duration的长度时，可能会引发此异常。

Syntax:

句法：

    public static Duration ofDays(long day_val);

Parameter(s):

参数：

long day_val – represents the number of days in value.
long day_val –表示值的天数。

Return value:

返回值：

The return type of this method is Duration, it returns the Duration that holds the value of the given days.

此方法的返回类型为Duration ，它返回保存给定天数的Duration。

Example:

例：

// Java program to demonstrate the example 
// of ofDays(long day_val) method 
// of Duration
import java.time.*;
import java.time.temporal.*;
public class OfDaysOfDuration {
public static void main(String args[]) {
long days_val = 3;
// returns the Duration that holds 
// the value of the given argument i.e. 
// here we are representing 3 days (72H) 
// in this Duration du1
Duration du1 = Duration.ofDays(days_val);
// Display du1
System.out.println("Duration.ofDays(3): " + du1);
}
}

Output

输出量