rightnow.java

java 经典实例 java学习 实例 这个对于java确实很有帮助

import java.util.*;
import java.text.SimpleDateFormat;
public class Rightnow
{
    public static void main (String args[])
    {
        Date today = new Date();                 //当前日期和时间
        System.out.println("当前时间="+today.toString());
        SimpleDateFormat sdf;
        sdf= new SimpleDateFormat("yyyy年MM月dd日hh时mm分ss秒 a EEEEE");
        System.out.println("      即 "+sdf.format(today));
        long lg=System.currentTimeMillis();      //当前时间的毫秒数
        Date tomorrow = new Date(lg+24*60*60*1000);
        System.out.println("    明天="+sdf.format(tomorrow));
        
        Calendar now = Calendar.getInstance();
        int year =now.get(Calendar.YEAR);                  //年份
        int month=now.get(Calendar.MONTH)+1;               //月份
        int day = now.get(Calendar.DATE);                  //日期
        System.out.print("今天="+year+"年"+month+"月"+day+"日");
        int week = now.get(Calendar.DAY_OF_WEEK);          //星期
        switch (week)
        {
            case 1: System.out.println("  星期日");break;
            case 2: System.out.println("  星期一");break;
            case 3: System.out.println("  星期二");break;
            case 4: System.out.println("  星期三");break;
            case 5: System.out.println("  星期四");break;
            case 6: System.out.println("  星期五");break;
            case 7: System.out.println("  星期六");break;
        }
    }
}