How To Get Last 5 Working Days ?

Question

It should take saturday and sunday as non-working days.
I need to take care of month changes also. The preceeding month can be of 30 , 31 or 28 days. We need to take care of year change also. The java Date class doesn't work well , even Calendar abstract class also doesn't do well if month change from
feb to jan , mar to feb , may to apr , jun to may ,aug to jul , nov to oct is required.
if input date given is 5 Feb 2001(calculate last 5 working days)
the output dates should be
5/2/2001
2/2/2001
1/2/2001
31/1/2001
30/1/2001

Answer 1

Here's an exmple:
//last 5 working days
import java.util.*;
class LastFiveWDays{
     public static void main(String [] a){
          boolean done = false;
          int i=0;
          Date date = new Date();
          Date[] lastFive = new Date[5];
          GregorianCalendar cal = new GregorianCalendar();
          while(!done){
               if( cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY ||
                    cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY ){
                         //skip
                         cal.roll(Calendar.DATE, false);
               else{
                    date = cal.getTime();
                    //add to array
                    lastFive[i] = date;
                    cal.roll(Calendar.DATE, false);
                    i++;
               if (i>=5) break;
          print(lastFive);
     public static void print(Date[] arr){
          for (int i=0;i<5;i++){
               System.out.println(arr.toString());