날짜, 시간 관련

int nYear, nMonth, nDay, nHour, nMinute, nNoon, nSecond;

Calendar c = Calendar.getInstance();

nYear = c.get(Calendar.YEAR);

nMonth = c.get(Calendar.MONTH)+1;

nDay = c.get(Calendar.DAY_OF_MONTH); 

nHour = c.get(Calendar.HOUR_OF_DAY);

nNoon = c.get(Calendar.AM_PM);

if(nNoon == 0){

   noon = "오전";

}else{

   noon = "오후";

   nHour -= 12;

}

nMinute = c.get(Calendar.MINUTE);  

nSecond = c.get(Calendar.SECOND);

//////////////////////////////////////////////////////////////////////////////////////////

string -> date

SimpleDateFormat sdFormat = new SimpleDateFormat("yyyyMMdd");

Date date = sdFormat.parse("20140101");

date -> string

SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

Date now = new Date();

String strDate = sdf.format(now);