Java, how could we trim carriage return and line break?

Question

Hello:

I am developing a web app using Java and beans.

I am trying to do a converter which checks if a message which the user introduces using a textarea is less than 5 characters long.

The difficulty is that event if the text area is empty it stills having /r/n and some spaces after it.

I have alreaady tried:

@Stateless
public class ComentarioNota {

    // Add business logic below. (Right-click in editor and choose
    // "Insert Code > Add Business Method")
    public String convierteComentarioNota(String evaluacion, String comentario) {
        if (evaluacion.trim().equals("Apto") && comentario != null && comentario.length() > 5) {
            return "Apto";
        } else {
            return "No Apto";
        }
    }
}

And when debbugging we can see the comment value in the comentario parameter:

Any help would be appreciated.

this is a duplicate question https://stackoverflow.com/a/19931443/1951298 — Curcuma_, Mar 16 '18 at 17:52
Possible duplicate of [Remove end of line characters from Java string](https://stackoverflow.com/questions/593671/remove-end-of-line-characters-from-java-string) — Don Branson, Mar 16 '18 at 18:17

score 1 · Answer 1 · answered Mar 16 '18 at 17:59

1

You can remove the linebreaks before the trim. How to remove line breaks from a file in Java?

How to remove newlines from beginning and end of a string (Java)?

text = text.replace("\n", "").replace("\r", "");

answered Mar 16 '18 at 17:59

Richard Stiller

143
1
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Java, how could we trim carriage return and line break?

1 Answers1