Java 判断两个日期相差多少天

最新推荐文章于 2024-08-01 21:00:46 发布

最新推荐文章于 2024-08-01 21:00:46 发布 · 86 阅读

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#java

本文通过Java编程示例，展示了如何使用Calendar类计算两个日期之间的毫秒数、秒数、分钟数、小时数及天数的差值。该示例初始化了两个Calendar实例并设置特定日期，接着转换为毫秒值进行比较。

import java.util.Calendar;

public class DateDifferent{
public static void main(String[] args){
Calendar calendar1 = Calendar.getInstance();
Calendar calendar2 = Calendar.getInstance();
calendar1.set(2007, 01, 10);
calendar2.set(2007, 07, 01);
long milliseconds1 = calendar1.getTimeInMillis();
long milliseconds2 = calendar2.getTimeInMillis();
long diff = milliseconds2 - milliseconds1;
long diffSeconds = diff / 1000;
long diffMinutes = diff / (60 * 1000);
long diffHours = diff / (60 * 60 * 1000);
long diffDays = diff / (24 * 60 * 60 * 1000);
System.out.println("\nThe Date Different Example");
System.out.println("Time in milliseconds: " + diff + " milliseconds.");
System.out.println("Time in seconds: " + diffSeconds + " seconds.");
System.out.println("Time in minutes: " + diffMinutes + " minutes.");
System.out.println("Time in hours: " + diffHours + " hours.");
System.out.println("Time in days: " + diffDays + " days.");
}
}