olympic.java~1~

来自「使用Java语言开发的数据库课程设计——医药管理信息系统。」· JAVA~1~ 代码 · 共 24 行

import java.awt.*;
import java.util.*;
import java.util.Calendar.*;
import javax.swing.JFrame;

public class Olympic
{
    public static void main (String[] args)
    {
        JFrame f = new JFrame("2008奥运会!");
        Calendar calendar = new GregorianCalendar(); //get the date of today
        Calendar Open_date = new GregorianCalendar(2008, Calendar.AUGUST, 8); //2008.8.8
        long diffMillis = Open_date.getTimeInMillis() - calendar.getTimeInMillis(); //Get difference in ms
        long diffDays = diffMillis / (24 * 60 * 60 * 1000) + 1; //Get difference in days
        Label lab1 = new Label("距2008北京奥运会还有" + diffDays + "天");
        f.add(lab1);
        f.setSize(200, 100);
        f.setVisible(true);
    }

}