//日历类

import java.text.SimpleDateFormat;

public class CalendarDemo {

public static
    
      void sop(T t){        System.out.println(t);}public static void main(String[] args) {    Calendar c = Calendar.getInstance();//默认时区和语言环境获得一个日历        String[] mons = {"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};        String[] weks = {"星期一","星期二","星期三","星期四","星期五","星期六","星期日"};        int index1 = c.get(Calendar.MONTH);//获得这个月,0代表1月        int index2 = c.get(Calendar.DAY_OF_WEEK);//获得这个星期的第几天        sop(c.get(Calendar.YEAR)+"年");//返回当前年        sop(c.get(Calendar.MONTH)+1+"月");        sop(mons[index1]);        sop(c.get(Calendar.DAY_OF_MONTH));//返回这个月的天数        sop(c.get(Calendar.HOUR)+"时");        sop(c.get(Calendar.MINUTE)+"分");        sop(c.get(Calendar.SECOND)+"秒");        sop(weks[index2-2]);        sop(c.get(Calendar.DAY_OF_WEEK));        sop(c.getTimeInMillis());//获得当前类的毫秒数        Date d = new Date();//格式化输出日期        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");        String year = sdf.format(d);        System.out.println("今天的日期为："+year);}
    

}

import java.util.Calendar;

public class CalendarDemo2 {

public static
    
      void sop(T t) {        System.out.println(t);}public static void printCalendar(Calendar c){        sop(c.get(Calendar.YEAR)+"年");        sop(c.get(Calendar.MONTH)+"月");        sop(c.get(Calendar.DAY_OF_MONTH)+"日");        sop(c.get(Calendar.DAY_OF_WEEK)-1);}public static void main(String[] args) {        Calendar c = Calendar.getInstance();        c.set(2018,10,29);        printCalendar(c);    }
    

}