HDU 2005 java

hdu 2005 java

public static void main(String[] args)throws Exception {    SimpleDateFormat df=new SimpleDateFormat("yyy/MM/dd");    GregorianCalendar date=new GregorianCalendar();    Scanner cin=new Scanner(System.in);     while(cin.hasNext()) {        String tmp=cin.nextLine();    //  System.out.println(df.parse(tmp));        date.setTime(df.parse(tmp));        System.out.println(date.get(date.DAY_OF_YEAR));     }    }