LocalDate类的YearDay()方法 (LocalDate Class ofYearDay() method)

• ofYearDay() method is available in java.time package.

  ofYearDay()方法在java.time包中可用。

• ofYearDay() method is used to create an instance of LocalDate object that holds the value from the year and day-of-year.

  ofYearDay()方法用于创建LocalDate对象的实例，该实例保存年份和年份中的值。

• ofYearDay() 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.

  ofYearDay()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。

• ofYearDay() method may throw an exception at the time of representing the day of the year.

  ofYearDay()方法在表示一年中的某天时可能会引发异常。

  DateTimeException: This exception may throw when the calculated result value exceeds the limit.

  DateTimeException ：当计算结果值超出限制时，可能引发此异常。

Syntax:

句法：

    public LocalDate ofYearDay(int yyyy, int ddOfyyyy);

Parameter(s):

参数：

• int yyyy – represents the year and starts from MIN_YEAR to MAX_YEAR.

  int yyyy –表示年份，从MIN_YEAR到MAX_YEAR。

• int ddOfyyyy – represents the days in a year and the number of days in a year from 1 to 365 (for non-leap) 366 (for leap year).

  int ddOfyyyy –表示一年中的天数和一年中的天数，范围是1到365(对于非le年)是366(对于leap年)。

Return value:

返回值：

The return type of this method is LocalDate, it returns the LocalDate that holds the value represented from a year and day-of-year.

此方法的返回类型为LocalDate ，它返回LocalDate，该LocalDate包含从年份和年份中表示的值。

Example:

例：

// Java program to demonstrate the example
// of ofYearDay(int yyyy, int ddOfyyyy)
// method of LocalDate
import java.time.*;
public class OfYearDayOfLocalDate {public static void main(String args[]) {int year = 2008;
int day_of_year = 50;
// Here, this method creates an instance
// of LocalDate by using the given year
// and day_of_year i.e. 2008-02-19
// [year = 2008, day_of_year = 50
// (Jan = 31 days + Feb = 19 days )
// {2008, Feb, 19} so 2008-02-19]
LocalDate of_year_day = LocalDate.ofYearDay(year, day_of_year);
// Display of_year_day
System.out.println("LocalDate.ofYearDay(year,day_of_year): " + of_year_day);
}
}

Output

输出量

LocalDate.ofYearDay(year,day_of_year): 2008-02-19

翻译自: https://www.includehelp.com/java/localdate-ofyearday-method-with-example.aspx