날짜비교

참조 : http://blog.naver.com/kmh12345km1?Redirect=Log&logNo=30150433116

Calendar cal = Calendar.getInstance();

// 현재 시간을 long 으로 변환
long currentTime = cal.getTimeInMillis();

// 비교를 원하는 날자를 설정(달은 0부터 싲가하므로 원하는 달에서 -1을 해주어야 함.)
cal.set(2009,11,18,14,0);

// 비교를 원하는 날자를 long 을 변환
long tmpTime = cal.getTimeInMillis();

if( currentTime - tmpTime < 0 ) {
   System.out.printIn("이전");
} else {
   System.out.printIn("이후");
}

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다른 방법 하나더...

Calendar curr = Calendar.getInstance();
Calendar tmp = Calendar.getInstance();

tmp.set(2009,11,18,14,0);

if( tmp.compareTo(curr) > 0) {
   System.out.printIn("이전");
} else {
   System.out.printIn("이후");
}