如何使用公历比较没有时间戳的日期?
在下面提供的示例中,两个结果都必须为true
。
package com.tutorialspoint;
import java.util.*;
public class GregorianCalendarDemo {
public static void main(String[] args) {
// create a new calendar
GregorianCalendar cal1 =
(GregorianCalendar) GregorianCalendar.getInstance();
// print the current date and time
System.out.println("" + cal1.getTime());
// create a second calendar equal to first one
GregorianCalendar cal2 = (GregorianCalendar) (Calendar) cal1.clone();
// print cal2
System.out.println("" + cal2.getTime());
// compare the two calendars
System.out.println("Cal1 and Cal2 are equal:" + cal1.equals(cal2));
// change cal 2 a bit
cal2.add(GregorianCalendar.MINUTE, 5);
// compare the two calendars
System.out.println("Cal1 and Cal2 are equal:" + cal1.equals(cal2));
}
}
最佳答案
假设cal1
和cal2
具有相同的时区(即cal1.getTimeZone().equals(cal2.getTimeZone())
),则可以使用以下代码仅比较日期:
cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) &&
cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR)
关于java - 如何使用公历比较没有时间戳的日期?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/32310692/