e-mail regular expression (java)

EmailRegex.java

// 이메일 정규표현식 
public static boolean testEmailFormat(String text) {
    if (TextUtils.isEmpty(text)) return false;
    Pattern pattern = Pattern.compile("^(([^<>()\\[\\]\\\\.,;:\\s@\"]" +
            "+(\\.[^<>()\\[\\]\\\\.,;:\\s@\"]+)*)|(.+))" +
            "@" +
            "((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}])" +
            "|(([a-zA-Z-0-9]+\\.)+[a-zA-Z]{2,}))$");
    return pattern.matcher(text).matches();
}