LocalDate類的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()方法用于創建LocalDate對象的實例，該實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()方法是一個靜態方法，可以使用類名進行訪問，如果嘗試使用類對象訪問該方法，則不會收到錯誤。

• 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時可能會引發異常。

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

  DateTimeException ：當計算結果值超出限制時，可能引發此異常。

Syntax:

句法：

public LocalDate ofYearDay(int yyyy, int ddOfyyyy);

Parameter(s):

參數：

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

  int yyyy –表示年份，從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 –表示一年中的天數和一年中的天數，范圍是1到365(對于非le年)是366(對于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.

此方法的返回類型為LocalDate ，它返回LocalDate，該LocalDate包含從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 LocalDateimport 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_daySystem.out.println("LocalDate.ofYearDay(year,day_of_year): " + of_year_day);} }

Output

輸出量

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

翻譯自: https://www.includehelp.com/java/localdate-ofyearday-method-with-example.aspx

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