方法一:使用LocalDate类 LocalDate是Java 8引入的日期类,可以方便地表示日期。我们可以使用isEquals()方法来比较两个日期是否相等。 importjava.time.LocalDate;publicclassCompareDates{publicstaticvoidmain(String[]args){LocalDatedate1=LocalDate.of(2022,10,10);LocalDatedate2=LocalDate.of(2022,10,10);if(d...
下面是一个完整的Java程序示例,用于计算两个日期相差的年份: importjava.time.LocalDate;importjava.time.temporal.ChronoUnit;publicclassDateDifference{publicstaticvoidmain(String[]args){LocalDatedate1=LocalDate.of(2020,1,1);LocalDatedate2=LocalDate.of(2021,1,1);intcompareResult=date1.compareTo(date2)...
LocalDate.parse("2021-07-01");//plus-按给定数量增加日期值LocalDate datePlus = date.plusDays(5); LocalDate datePlus2 = date.plusWeeks(2); LocalDate datePlus3 = date.plusMonths(3); LocalDate datePlus4 = date.plusYears(4);//minus-按给定数量减去日期值LocalDate dateMinus = date.minusDays(...
1.将字符串”2017-08-16”转换为对应的java.sql.Date类的对象。 (使用JDK8之前或JDK8中的API皆可) packagewww.fancy.prac1;importorg.junit.Test;importjava.text.ParseException;importjava.text.SimpleDateFormat;publicclassdateTest { @Testpublicvoiddatetrans()throwsParseException { String str1= "2017-08...
@Test public void testDateTool() { LocalDate today = LocalDate.now(); //Get the Year, check if it's leap year System.out.println("Year " + today.getYear() + " is Leap Year? " + today.isLeapYear()); //Compare two LocalDate for before and after System.out .println("Today is...
Learn to compare dates in Java with examples of date comparison using Date and Calendar (till Java 7); LocalDate, LocalDateTime and ZonedDateTime in Java 8.
[Android.Runtime.Register("compareTo","(Ljava/time/chrono/ChronoLocalDate;)I","", ApiSince=26)]publicintCompareTo(Java.Time.Chrono.IChronoLocalDate? other); 參數 other IChronoLocalDate 傳回 Int32 實作 CompareTo(IChronoLocalDate) 屬性 ...
您可以将compareTo的实现委托给一个Comparator,它可以链接给定会议的多个属性的比较:
Learn to compare two LocalDate instances to find out which date represents an older date. LocalDate class is part of java.time package added in Java 8.
java.util.Date和java.time.LocalDate是Java中表示日期和时间的两个类。它们有一些不同的特性和用途。 java.util.Date: java.util.Date是Java早期提供的表示日期和时间的类。它包含了年、月、日、时、分、秒和毫秒等信息。然而,它在设计上存在一些问题,因此在Java 8之后,引入了新的日期和时间API。 java.time...