날짜, 시간 관련

두 시간을 비교하여 경과 시간 표시 (페이스북 몇분 전에 쓴글 표시)

public  String diffOfDate(Date begin) throws Exception

 {

   Date endDate = new Date();

   long diffDays;

   String elapsetime="";

   long diff = endDate.getTime() - begin.getTime();

   diff= diff/1000;

   if(86400<diff){

    diffDays = diff / (24 * 60 * 60);

    elapsetime=diffDays+"일 전";

   }else if(86400>diff){

    diffDays = diff / (60 * 60);

    elapsetime=diffDays+"시간 전";

   }else if(60<=diff){

    diffDays = diff / (60);

    elapsetime=diffDays+"분 전";

   }else if(60>diff){

    elapsetime=diff+"초 전";

   } 

   return elapsetime;

 }