是否有电子邮件验证code Java ME的或BlackBerry？ [英] Is there email validator code for Java ME or BlackBerry?

问题描述

有没有Java ME的或BlackBerry一些标准的电子邮件验证code样？

解决方案

 公共静态布尔validateEmailID（字符串email）{
    电子邮件= email.trim（）;
    字符串反向=新的StringBuffer（电子邮件）.reverse（）的toString（）。
    如果（电子邮件== NULL || email.length（）== 0 || email.indexOf（@）== -1）{
        返回false;
    }
    INT emailLength = email.length（）;
    INT atPosition = email.indexOf（@）;
    INT atDot = reverse.indexOf（。）;    串beforeAt = email.substring（0，atPosition）;
    串afterAt = email.substring（atPosition + 1，emailLength）;    如果（beforeAt.length（）== 0 || afterAt.length（）== 0）{
        返回false;
    }
    的for（int i = 0; email.length（） -  1 GT;我;我++）{
        炭的i1 = email.charAt（ⅰ）;
        炭I2 = email.charAt第（i + 1）;
        如果（I1 ==＆放大器'。';＆放大器; i2的=='。'）{
            返回false;
        }
    }
    如果（email.charAt（atPosition  - ''''''1）== || email.charAt（0）== || email.charAt（atPosition + 1）== || afterAt.indexOf（ ！@）= -1 || atDot 2）{
        返回false;
    }    返回true;
}
 

Is there some standard email validator code sample for Java ME or BlackBerry?

解决方案

public static boolean validateEmailID(String email) {
    email = email.trim();
    String reverse = new StringBuffer(email).reverse().toString();
    if (email == null || email.length() == 0 || email.indexOf("@") == -1) {
        return false;
    }
    int emailLength = email.length();
    int atPosition = email.indexOf("@");
    int atDot = reverse.indexOf(".");

    String beforeAt = email.substring(0, atPosition);
    String afterAt = email.substring(atPosition + 1, emailLength);

    if (beforeAt.length() == 0 || afterAt.length() == 0) {
        return false;
    }
    for (int i = 0; email.length() - 1 > i; i++) {
        char i1 = email.charAt(i);
        char i2 = email.charAt(i + 1);
        if (i1 == '.' && i2 == '.') {
            return false;
        }
    }
    if (email.charAt(atPosition - 1) == '.' || email.charAt(0) == '.' || email.charAt(atPosition + 1) == '.' || afterAt.indexOf("@") != -1 || atDot < 2) {
        return false;
    }

    return true;
}

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