How to replace comma (,) with a dot (.) using java

[alpesh helwatkar]

Hi i'm doing

if(str.indexOf(",")!=-1)
			 {
				 log.info("Success!!");
				 str.replaceAll(",","\\.");
			 }

for replacing the comma with a dot but unable to do so... m i using the wrong regular expression?. please help

[Darryl Burke]

Regex looks to be ok, but you're discarding the return value.

[alpesh helwatkar]

so should i take it in a new variable? like

String newVal = str.replaceAll("," , "\\.");

[Matthew Brown]

Or just the same variable:

str = str.replaceAll("," , ".");

I don't think the second argument needs to be a regular expression, just a standard string (with a few exceptions, but I don't think a dot is one of them).

[alpesh helwatkar]

hi.. yes.. i did used the same variable and it worked! thnx for the support!

[Rob Spoor]

Unless you need to use regular expressions, it's better to use replace:

str = str.replace("," , ".");

That way you don't need to worry about escaping any values.