Java LocalDate类| isLeapYear（）方法与示例

LocalDate类isLeapYear()方法 (LocalDate Class isLeapYear() method)

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

  isLeapYear()方法在java.time包中可用。

• isLeapYear() method is used to check whether the year field value is a leap year or not based on ISO Calendar System.

  isLeapYear()方法用于根据ISO日历系统检查年字段值是否为a年。

• isLeapYear() 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.

  isLeapYear()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。

• isLeapYear() method does not throw an exception at the time of checking the status.

  isLeapYear()方法在检查状态时不会引发异常。

Syntax:

句法：

public boolean isLeapYear();

Parameter(s):

参数：

• None

  没有

Return value:

返回值：

The return type of this method is boolean, it returns true when the year is a leap year otherwise it returns false.

此方法的返回类型为boolean ，当年份为a年时返回true，否则返回false。

Example:

例：

// Java program to demonstrate the example // of isLeapYear() method of LocalDateimport java.time.*;public class IsLeapYearOfLocalDate {public static void main(String args[]) {// Instantiates two LocalDateLocalDate l_da1 = LocalDate.parse("2007-04-04");LocalDate l_da2 = LocalDate.now();// Display l_da1,l_da2System.out.println("LocalDate l_da1 and l_da2: ");System.out.println("l_da1: " + l_da1);System.out.println("l_da2: " + l_da2);System.out.println();// Here, this method checks whether this// date l_da1 year is a leap year according// to ISO Calendar rules or not i.e.// here it returns false because l_da1// year (2007) is not a leap yearboolean status = l_da1.isLeapYear();// Display statusSystem.out.println("l_da1.isLeapYear(): " + status);// Here, this method checks whether this // date l_da2 year is a leap year according// to ISO Calendar rules or not i.e.// here it returns true because l_da2// year (2020) is a leap yearstatus = l_da2.isLeapYear();// Display statusSystem.out.println("l_da2.isLeapYear(): " + status);} }

Output

输出量

LocalDate l_da1 and l_da2: l_da1: 2007-04-04 l_da2: 2020-05-30l_da1.isLeapYear(): false l_da2.isLeapYear(): true

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

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