在下面附属类方法中的下划线处应填入的正确参数是【 】public void writeData()throws IOException{ GregorianCalendar calendar=new GregorianCalendar(); calendar,setTime(hireDay); out.println(name+"|" +salary+"|" +calendar.get(Calendar.YEAR)+"|" +(calendar.get(Calendar.MONTH)+1)+"|" +calendar.get(Calendar.DAY_OF_MONTH)):}
A.Employee[]e
B."employee.dat"
C.PrintWriter out
D.BufferedWriter