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 LocalDate
import java.time.*;
public class IsLeapYearOfLocalDate {
public static void main(String args[]) {
// Instantiates two LocalDate
LocalDate l_da1 = LocalDate.parse("2007-04-04");
LocalDate l_da2 = LocalDate.now();
// Display l_da1,l_da2
System.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 year
boolean status = l_da1.isLeapYear();
// Display status
System.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 year
status = l_da2.isLeapYear();
// Display status
System.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