Java8 時間調節器

TemporalAdjuster 是做日期數學計算。例如，要獲得「本月第二個星期六」或「下週二」。

讓我們來看看他們的操作。

選擇使用任何編輯器創建以下java程序在 C:/> JAVA

Java8Tester.java

import java.time.LocalDate; import java.time.temporal.TemporalAdjusters; import java.time.DayOfWeek; public class Java8Tester { public static void main(String args[]){ Java8Tester java8tester = new Java8Tester(); java8tester.testAdjusters(); } public void testAdjusters(){ //Get the current date LocalDate date1 = LocalDate.now(); System.out.println("Current date: " + date1); //get the next tuesday LocalDate nextTuesday = date1.with(TemporalAdjusters.next(DayOfWeek.TUESDAY)); System.out.println("Next Tuesday on : " + nextTuesday); //get the second saturday of next month LocalDate firstInYear = LocalDate.of(date1.getYear(),date1.getMonth(), 1); LocalDate secondSaturday = firstInYear.with( TemporalAdjusters.nextOrSame(DayOfWeek.SATURDAY)).with( TemporalAdjusters.next(DayOfWeek.SATURDAY)); System.out.println("Second saturday on : " + secondSaturday); } }

驗證結果

使用javac編譯器編譯如下類

C:\JAVA>javac Java8Tester.java

現在運行Java8Tester看到的結果

C:\JAVA>java Java8Tester

看到結果。

Current date: 2014-12-10
Next Tuesday on : 2014-12-16
Second saturday on : 2014-12-13