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AlejandroR
Asked: 2022-03-12 00:34:35 +0800 CST 2022-03-12 00:34:35 +0800 CST

StringUtils Doubts

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I have to do a check. I have to search for an email through a nif/dni. The thing is that I need to remove the letter from the ID to search for an email associated with said ID.

I have been reviewing the StringUtils class, I have already used it before. The thing is that with split you need a separator character to tell it where to cut the string. Could someone tell me how I could do it, so that I can remove the last character of the ID and verify that it is a letter that it removes?

Thank you very much in advance

java

2 Answers

  1. Best Answer

    You search :charAt()

    The method returns the character at the specified index in a string.

    char letraDNI = dni.charAt(dni.length() - 1);

    I think you can play with it now.

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  2. that happens with some special characters for example . or , or \ are several

    You should use a Patern like this:

    String.split(Pattern.quote("//"));
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