Java 使用Calendar类查找日期和时间之间的间隔

​

import java.util.Calendar;

​

import java.util.Date;

/*来自 

 nowjava.com - 时代Java*/

​

import java.util.concurrent.TimeUnit;

​

​

public class Main {

​

​

  public static void main(String[] args) {

​

    Calendar cal1 = Calendar.getInstance();

​

    Calendar cal2 = Calendar.getInstance();

​

​

    // Set the date to 01/01/2010:12:00

​

    cal2.set(2010, 0, 1, 12, 0);

​

    Date date1 = cal2.getTime();

​

    System.out.println(date1);

​

​

    long mill = Math.abs(cal1.getTimeInMillis() - date1.getTime());

​

    // Convert to hours

​

    long hours = TimeUnit.MILLISECONDS.toHours(mill);/**时 代 J a v a**/

​

    // Convert to days

​

    Long days = TimeUnit.HOURS.toDays(hours);

​

    String diff = String.format("%d hour(s) %d min(s)",hours,TimeUnit.MILLISECONDS.toMinutes(mill) - TimeUnit.HOURS.toMinutes(hours));

​

    System.out.println(diff);

​

​

    diff = String.format("%d days", days);

​

    System.out.println(diff);

​

​

/**代码未完, 请加载全部代码(NowJava.com).**/