This month Calendar

package fourth;
import java.text.DateFormatSymbols;
import java.util.*;
public class CalendarTest {

public static void main(String[] args) {
// TODO Auto-generated method stub
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);

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_WEEK, 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();


}

}