LocalDate类plusWeeks()方法 (LocalDate Class plusWeeks() method)

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

  plusWeeks()方法在java.time包中可用。

• plusWeeks() method is used to add the given duration in weeks to this LocalDate and return the LocalDate.

  plusWeeks()方法用于将给定的持续时间(以周为单位)添加到此LocalDate并返回LocalDate。

• plusWeeks() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  plusWeeks()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• plusWeeks() method may throw an exception at the time of performing addition.

  plusWeeks()方法在执行加法时可能会引发异常。

  DateTimeException: This exception may throw when the calculated results exceed the length of this LocalDate.

  DateTimeException ：当计算结果超过此LocalDate的长度时，可能引发此异常。

Syntax:

句法：

public LocalDate plusWeeks(long weeks_val);

Parameter(s):

参数：

• long weeks_val – represents the weeks value to add to this LocalDate.

  long week_val –表示要添加到此LocalDate的周数。

Return value:

返回值：

The return type of this method is LocalDate, it returns the LocalDate that holds the value added the given weeks to this LocalDate.

此方法的返回类型为LocalDate ，它返回LocalDate，该LocalDate包含将给定周数添加到此LocalDate的值。

Example:

例：

// Java program to demonstrate the example // of plusWeeks(long weeks_val) method of LocalDateimport java.time.*;public class PlusWeeksOfLocalDate {
       public static void main(String args[]) {
           long weeks = 4;        // Instantiates two LocalDate        LocalDate l_da1 = LocalDate.parse("2007-04-04");        LocalDate l_da2 = LocalDate.of(2008, Month.FEBRUARY, 06);        // Display l_da1,l_da2 and weeks        System.out.println("LocalDate l_da1,l_da2 : ");        System.out.println("l_da1: " + l_da1);        System.out.println("l_da2: " + l_da2);        System.out.println("weeks to add: " + weeks);        System.out.println();        // Here, this method adds the        // given weeks to this date l_da1        // i.e. here we are adding 4        // weeks to the date l_da1        LocalDate plus_weeks = l_da1.plusWeeks(weeks);        // Display plus_weeks        System.out.println("l_da1.plusWeeks(weeks): " + plus_weeks);        // Here, this method adds the        // given weeks to this date l_da2        // i.e. here we are adding 4        // weeks to the date l_da2        plus_weeks = l_da2.plusWeeks(weeks);        // Display plus_weeks        System.out.println("l_da2.plusWeeks(weeks): " + plus_weeks);    }}

Output

输出量

LocalDate l_da1,l_da2 : l_da1: 2007-04-04l_da2: 2008-02-06weeks to add: 4l_da1.plusWeeks(weeks): 2007-05-02l_da2.plusWeeks(weeks): 2008-03-05

翻译自: