Hi,

I am trying to use a Pattern to match certain strings in error
messages in our application.  We are delimiting them using the
following notation, {0}, {1}, etc.  I am trying to use String's
replaceFirst (even replaceAll) method to replace the instances of
these tokens with appropriate Strings.  I am using the following code:

String match = "\\{0\\}";
String message = "{0} should be 5 characters in length.";
String replacement = "Zip Code";
message.replaceAll( match, replacement );

message is unaffected by this method call.

This pattern /\{0\}/ works on online RegEx testers, but I feel I am
missing an important step porting it to java's Pattern class.  I have
tried sticking /'s into the string, ending it with "g", etc.  Nothing
seems to work.  anyone have any insight into how I can do this or what
I am doing incorrectly?

TIA.