public static int age ( Date birthday , Date date ) {
  DateFormat formatter = new SimpleDateFormat ( "yyyyMMdd" ) ;
  int d1 = Integer . parseInt ( formatter . format ( birthday ) ) ;
  int d2 = Integer . parseInt ( formatter . format ( date ) ) ;
  int age = ( d2 - d1 ) / 10000 ;
  return age ;
}

public static int age ( Date birthday , Date date ) { DateFormat formatter = new SimpleDateFormat ( " yyyyMMdd " ) ; int d1 = Integer . parseInt ( formatter . format ( birthday ) ) ; int d2 = Integer . parseInt ( formatter . format ( date ) ) ; int age = ( d2 - d1 ) / 10000 ; return age ; }
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