import java.util.*;
public class CalendarTest
{
public static void main(String[] args)
{
GregorianCalendar d=new GregorianCalendar();
int today=d.get(Calendar.DAY_OF_MONTH);
int month=d.get(Calendar.MONTH);
d.set(Calendar.DAY_OF_MONTH,1);
int weekday=d.get(Calendar.DAY_OF_WEEK);
System.out.println(" Sun Mon Tue Wed Thu Fri Sat");
for(int i=Calendar.SUNDAY;i<weekday;i++)
System.out.print(" ");
do{
int day=d.get(Calendar.DAY_OF_MONTH);
if(day==today)
{
System.out.print(" [");
System.out.printf("%d",day);
}
else
{
System.out.printf("%4d",day);
}
if(day==today)
{
System.out.print("]");
}
else
{
System.out.print(" ");
}
if(weekday==Calendar.SATURDAY)
System.out.println();
d.add(Calendar.DAY_OF_MONTH,1);
weekday=d.get(Calendar.DAY_OF_WEEK);
}
while(d.get(Calendar.MONTH)==month);
if(weekday!=Calendar.SUNDAY)
System.out.println();
}
}