import java.text.DateFormatSymbols;

import java.util.Calendar;

import java.util.GregorianCalendar;

import java.util.Locale;

public class Main {

    /**

     * 打印出日历表格

     */

    public static void main(String[] args) {

        GregorianCalendar d = new GregorianCalendar();

        int today = d.get(Calendar.DAY_OF_MONTH); //今天是当月的几号

        int month = d.get(Calendar.MONTH); //现在是第几月(因为从0开始算所以得到的月份要加个1)

        d.set(Calendar.DAY_OF_MONTH,1);//将d设置为这个月的第一天

        int weekday = d.get(Calendar.DAY_OF_WEEK);

        int firstDayOfWeek = d.getFirstDayOfWeek();

        int indent = 0;

        while(weekday != firstDayOfWeek){

            indent++;

            d.add(Calendar.DAY_OF_MONTH,-1);

            weekday = d.get(Calendar.DAY_OF_WEEK);

        }

        String[] weekdayNames = new DateFormatSymbols().getShortWeekdays();

        do{

            System.out.printf("%4s", weekdayNames[weekday]);

            d.add(Calendar.DAY_OF_MONTH, 1);

            weekday = d.get(Calendar.DAY_OF_WEEK);

        }while(weekday != firstDayOfWeek);

        System.out.println();

        for(int i = 1;i <= indent;i++){

            System.out.print("    ");

        }

        d.set(Calendar.DAY_OF_MONTH, 1);

        do{

            int day = d.get(Calendar.DAY_OF_MONTH);

            System.out.printf("%3d",day);

            if(day == today)System.out.print("*");

            else System.out.print(" ");

            d.add(Calendar.DAY_OF_MONTH, 1);

            weekday = d.get(Calendar.DAY_OF_WEEK);

            if(weekday == firstDayOfWeek) System.out.println();

        }while(d.get(Calendar.MONTH) == month);

        if(weekday != firstDayOfWeek) System.out.println();

    }

}