번역은 필요 없을 듯해서 생략요 ^^ http://www.mkyong.com/tutorials/java-regular-expression-tutorials/ 아래에 그대로 카피해서 올려둡니다. Username regular expression Username regular expression example in Java and unit tested with TestNG.^[a-z0-9_-]{3,15}$Password regular expression Password regular expression example in Java and unit tested with TestNG.((?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%]).{6,20})Hex color code regula..