Extracting Double from String?

[mutagen]

Alright guys let's say I have a String:

"\u00A3 3.39 per Unit"

the String displays cost of a product and what I need to do next is get the "3.39" part of the String and continue working with that. How can I extract that number? I was thinking about using a loop with charAt(); Method and just parse it to double but it would extract 003 in front of that String as well since it's a code I must use to get GBP symbol. so does anyone have an elegant solution to this?


should I use loop with charAt();
substring(3);
and then parse?

or does anyone have any other solutions?

TYVM!

[doWhile]

Might be overkill for something like this, but I'll post anyways:
Lesson: Regular Expressions (The Java™ Tutorials > Essential Classes)

If you expect the strings to remain constant, just split on whitespace or use a StringTokenizer, take the string with the number and use Double.parseDouble to get the double value

[DarrylBurke]

And if you do need to use regex, there's another, more detailed tutorial on this site:
Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns

db

[mutagen]

Thanks guys!

[JavaHater]

if you know your string is going to be that kind of structure, no need to use much regular expression. Do a split() on white space (\s+) , then get the 2nd element (index 1 from your example) from the returned array.