How to eliminate "\n" using String.replaceAll(str, str)

I've noticed a few people having prob with replaceAll
in the forum.
Here's what I want to accomplish.
I need to put the value received from HTML <textarea>,
into just one line in a file.
String sentence = "line1\nline2\nline3\nline4\n";
System.out.println("before" + sentence);
System.out.println("after" + sentence.replaceAll("\n",
"\\n");The result looks like this.
before= line1
line2
line3
line4
after= line1nline2nline3nline4n
Notice that a backslash is missing.
How can I get the original string with "\n" placed at
the right place??
Thanks a lot.
Masako
I got the results you were looking for by doing it this way:
sentence.replaceAll("\\n", "\\\\n");I'm a bit confused about this result, though. Like someone said earlier, i thought "\n" was a single character. Maybe it doesn't get evaluated into the newline character until it's displayed...?

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hi,
I'd like to use the String.replaceAll call to replace all occurrences of a pattern in a string with a string inputted from the user.
The problem is that replaceAll seems process the replacement string first. For example, the code below won't work
public class StringTest {
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The only thing I can find from looking through the API is that you'd need to convert each backslash to a double-backslash?
is this the right thing to be doing?
thanks,
asjf

just to clarify, at the moment I think the solution is to do this
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That method doesn't make any sense to me:
replacing strings with the same exact string?
also the last one isn't correct, maybe missing a \ ?
Also, you do realize that the replaceAll method uses the first argument as a regex to match patterns in the string?
My apologies if I'm missing something.
But if this really is what you want, then maybe this is faster (I haven't measured any times though):public static String makeSafeForXML2(String str)
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    for (int i = 0; i < sb.length(); i++) {
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                break;
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                sb.replace(i, i + 1, ">");
                break;
            case '<':
                sb.replace(i, i + 1, "<");
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I need to replace a single quote ( ' ) in a string with two single quotes. I am trying to use String.replaceAll method but it does not work. I guess my regular expression is not correct. I have tried several combinations already.
text.replaceAll(".'.","''");
text.replaceAll("'","''");
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It's been at least a week since I've posted this:
Since regex patterns are involved, you can use the simpler replace method:
str = str.replace("'", "''");By the way, I hope you not doing this to insert text into a database!

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Sorry, Firefox doesn't do email, it's strictly a web browser.
If you are using Firefox to access your mail, you are using "web-mail". You need to seek support from your service provider or a forum for that service.
If your problem is with Mozilla Thunderbird, see this forum for support.
[https://support.mozillamessaging.com/en-US/home] <br />
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[http://forums.mozillazine.org/viewforum.php?f=39]

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Regards,

Hmmm... looks like the file format isn't even very consistent... why the semicolon after Data1 but not after Data2 or Data3??
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I am also going to assume your format is very rigid. E.g. section Data1 will ALWAYS come before section Data2, which will come before section Data3, etc... and you might even make the assumption there can never be a Data4, 5, 6, etc... (this is why its nice to have some exact specification, like a grammar, so you know exactly what is and is not allowed.) I will also assume that the section names will always be the same, namely "DataX" where X is a decimal digit.
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I would suggest something like this general framework:
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[code]
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[/code]

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