java.time.MonthDay

在 ThreeTenABP 项目，它是 = nofollow noreferrer> Java时间类内置于Java 8及更高版本中。避免麻烦的旧式旧式日期时间类。

java.time.MonthDay

Use modern date-time classes in the ThreeTenABP project, an Android adaptation of the back-port of the java-time classes built into Java 8 and later. Avoid the troublesome old legacy date-time classes.

这些java.time类包括 MonthDay 类代表一个月和一个月中的某天

These java.time classes include the MonthDay class to represent a month and a day-of-month without a year.

MonthDay md = MonthDay.of( 8 , 15 );

此类已实现 可比较 接口及其 compareTo 方法。还实现了 等于 ， isBefore 和 isAfter 。因此，工作就完成了。

This class already implements the Comparable interface and its compareTo method. Also implements methods equals, isBefore, and isAfter. So, job done.

确定当前 MonthDay 需要一个时区。在任何给定的时刻，日期都会根据时区。

ZoneId z = ZoneId.of( "America/Montreal" );
MonthDay today = MonthDay.now( z );

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关于java.time

java.time 框架内置于Java 8及更高版本中。这些类取代了麻烦的旧旧版日期时间类，例如 java.util.Date ， Calendar ，& SimpleDateFormat 。

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About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

现在处于维护模式的Joda-Time 项目建议迁移到 java.time 类。

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

要了解更多信息，请参见 Oracle教程。并在Stack Overflow中搜索许多示例和说明。规范为 JSR 310 。

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

从哪里获取java.time类？

Where to obtain the java.time classes?

• Java SE 8 和 SE 9 和后来的
  
  
  
  
  • 内置。
  
  
  • 具有捆绑实现的标准Java API的一部分。
  
  
  • Java 9添加了一些次要功能和修复。
  
  
  • Java SE 8 and SE 9 and later
    • Built-in.
    • Part of the standard Java API with a bundled implementation.
    • Java 9 adds some minor features and fixes.
    
    
    • 许多java.time功能都被反向移植到Java 6& nofollow noreferrer> ThreeTen-Backport 。
    
    
    • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
    
    
    • ThreeTenABP 项目专门为Android改编了 ThreeTen-Backport （上面提到）。
    
    
    • 请参阅 如何使用ThreeTenABP… 。
    
    
    • The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
    • See How to use ThreeTenABP….