LocalDate类minusYears()方法 (LocalDate Class minusYears() method)

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

  minusYears()方法在java.time包中可用。

• minusYears() method is used to subtract the given years from this LocalDate and return the LocalDate.

  minusYears()方法用于从此LocalDate中减去给定的年份并返回LocalDate。

• minusYears() 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.

  minusYears()方法是一种非静态方法，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。

• minusYears() method may throw an exception at the time of performing subtraction.

  minusYears()方法在执行减法时可能会引发异常。

  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 minusYears(long yrs_val);

Parameter(s):

参数：

• long yrs_val – represents the years to be subtracted from this LocalDate.

  long yrs_val –表示要从此LocalDate中减去的年份。

Return value:

返回值：

The return type of this method is LocalDate, it returns the LocalDate that holds the value subtracted the given years from this LocalDate.

此方法的返回类型为LocalDate ，它返回LocalDate，该LocalDate保留从此LocalDate中减去给定年份的值。

Example:

例：

// Java program to demonstrate the example // of minusYears(long yrs_val) method of LocalDateimport java.time.*;public class MinusYearsOfLocalDate {
       public static void main(String args[]) {
           long years = 3;        // 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 years        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("years to subtract: " + years);        System.out.println();        // Here, this method subtracts the        // given years from this date l_da1        // i.e. here we are subtracting 3        // years from the date l_da1        LocalDate minus_yrs = l_da1.minusYears(years);        // Display minus_yrs        System.out.println("l_da1.minusYears(years): " + minus_yrs);        // Here, this method subtracts the        // given years from this date l_da2        // i.e. here we are subtracting 3        // years from the date l_da2        minus_yrs = l_da2.minusYears(years);        // Display minus_yrs        System.out.println("l_da2.minusYears(years): " + minus_yrs);    }}

Output

输出量

LocalDate l_da1,l_da2 : l_da1: 2007-04-04l_da2: 2008-02-06years to subtract: 3l_da1.minusYears(years): 2004-04-04l_da2.minusYears(years): 2005-02-06

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