Java8 ChronoUnits枚举

原文：http://www.yiibai.com/java8/java8_chronounits.html

 

java.time.temporal.ChronoUnit 枚举在 Java8 中添加，以取代旧的API用来代表日，月等整数值

让我们来看看他们的操作。

使用所选择的任何编辑器创建下面的java程序在 C:/> JAVA

Java8Tester.java

import java.time.LocalDate; import java.time.temporal.ChronoUnit; public class Java8Tester { public static void main(String args[]){ Java8Tester java8tester = new Java8Tester(); java8tester.testChromoUnits(); } public void testChromoUnits(){ //Get the current date LocalDate today = LocalDate.now(); System.out.println("Current date: " + today); //add 1 week to the current date LocalDate nextWeek = today.plus(1, ChronoUnit.WEEKS); System.out.println("Next week: " + nextWeek); //add 1 month to the current date LocalDate nextMonth = today.plus(1, ChronoUnit.MONTHS); System.out.println("Next month: " + nextMonth); //add 1 year to the current date LocalDate nextYear = today.plus(1, ChronoUnit.YEARS); System.out.println("Next year: " + nextYear); //add 10 years to the current date LocalDate nextDecade = today.plus(1, ChronoUnit.DECADES); System.out.println("Date after ten year: " + nextDecade); } }

验证结果

使用javac编译器编译如下类

C:\JAVA>javac Java8Tester.java

现在运行Java8Tester看到的结果

C:\JAVA>java Java8Tester

看到结果

Current date: 2014-12-10                                                 
Next week: 2014-12-17                                                    
Next month: 2015-01-10                                                   
Next year: 2015-12-10                                                    
Date after ten year: 2024-12-10