public class Countdays{      private int total=0;      public Countdays(String indate,String outdate)         {              //System.out.println("\nhahahahaha");              mission(indate,outdate);         }      public boolean isleapyear(int year)//判斷閏年        {          if(year%4==0) return true;          else              return false;         }      public int yeardays(int a,int b)       {         int yeardays=0;         a++;         while(a<b)         {           if(isleapyear(a))             yeardays=yeardays+366;           else             yeardays=yeardays+365;             a++;         }         return yeardays;       }      public int judge_february(int year)//返回二月的天數         {           if(isleapyear(year))              return 29;           else              return 28;         }      public int toyearbeginning(int year,int month,int day)//返回當前月月末到年初的天數       {          switch(month-1)         {          case 0:return day;          case 1:return 31+day;          case 2:              return 31+judge_february( year)+day;          case 3:              return 62+judge_february( year)+day;          case 4:              return 92+judge_february( year)+day;          case 5:              return 123+judge_february( year)+day;          case 6:              return 153+judge_february( year)+day;          case 7:              return 184+judge_february( year)+day;          case 8:              return 215+judge_february( year)+day;          case 9:              return 245+judge_february( year)+day;          case 10:              return 276+judge_february( year)+day;          case 11:              return 306+judge_february( year)+day;          case 12:              return 337+judge_february( year)+day;          default:return 0;       }      }        public int toyearend(int year,int month,int day)//算上當前天        {                if(isleapyear(year))                   return 366-toyearbeginning(year,month,day)+1;                else                   return 365-toyearbeginning(year,month,day)+1;        }      public void compute_total(int yeara,int yearb,int montha,int monthb,int daya,int dayb)        {                if(yeara!=yearb)                   total=yeardays(yeara,yearb)+toyearbeginning(yearb,monthb,dayb)+toyearend(yeara,montha,daya);                else                   total=toyearbeginning(yearb,monthb,dayb)-toyearbeginning(yeara,montha,daya)+1;//算上當前天         }      public int getdays()          {            return total;          }      public void mission(String a,String b)          {            int yeara;            int yearb;            int montha;            int monthb;            int daya;            int dayb;            yeara=Integer.parseInt(a.substring(0,4));            yearb=Integer.parseInt(b.substring(0,4));            montha=Integer.parseInt(getmonstr(a));            monthb=Integer.parseInt(getmonstr(b));            daya=Integer.parseInt(getdaystr(a));            dayb=Integer.parseInt(getdaystr(b));            compute_total(yeara,yearb,montha,monthb,daya,dayb);           }      public String getmonstr(String t)           {             if(!t.substring(6,7).equals("-"))               return t.substring(5,7);             else                return t.substring(5,6);           }      public String getdaystr(String t)           {             int i=t.length()-1;             while(t.charAt(i)!='-')               i--;             return t.substring(i+1,t.length());            }}