Regex for finding a '?' in a String

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junk1@davidbevan.co.uk - 31 Jan 2006 14:50 GMT

Im trying to write a routine to replace the '?' in a String with values
supplied by the client.

ie

String myString = "Hello there, my first name is ? and my surname is
?";
String myRegex = "<a regex>";
myString = myString.replaceFirst(myRegex, "David");
myString = myString.replaceFirst(myRegex, "Bevan");
System.out.println(mString);

Required output is "Hello there, my first name is David and my surname
is Bevan"

What do i need as myRegex?

Many thanks

David Bevan
http://www.davidbevan.co.uk

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Daniel Dyer - 31 Jan 2006 14:54 GMT

> Im trying to write a routine to replace the '?' in a String with values
> supplied by the client.

If you don't specifically require the markers to be question marks, the
java.text.MessageFormat class might be a better fit for what you are
trying to do.

Signature

Daniel Dyer
http://www.dandyer.co.uk

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Arnaud B. - 31 Jan 2006 14:59 GMT

This regex :

"\\?"
should be enough

Regards,

Arnaud

> Im trying to write a routine to replace the '?' in a String with values
> supplied by the client.
[quoted text clipped - 17 lines]
> David Bevan
> http://www.davidbevan.co.uk

Reply to this Message

Joe Attardi - 31 Jan 2006 23:03 GMT

> Im trying to write a routine to replace the '?' in a String with values
> supplied by the client.
[quoted text clipped - 7 lines]
> myString = myString.replaceFirst(myRegex, "Bevan");
> System.out.println(mString);

You didn't mention if you are able to use Java 5. But, if you are able
to use Java 5 in your project, this can be simplified thusly:

System.out.println(String.format("Hello there, my first name is %s and
my surname is %s", "David", "Bevan"));

Reply to this Message

Joe Attardi - 01 Feb 2006 00:01 GMT

You didn't mention if you are able to use Java 5. But, if you are able
to use Java 5 in your project, this can be simplified thusly:

System.out.printf("Hello there, my first name is %s and my surname is
%s", "David", "Bevan");

Or, if you want to store it in a string,
String myString = String.format("Hello there, my first name is %s and
my surname is %s", "David", "Bevan");

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Regex for finding a '?' in a String

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