Converting a String to a double....why this error? how to solve?

Hello guys
I have a string (the string temp) that contains "4444.0"
I need to have it in double format so I wrote:
double fatto2 = Double.parseDouble(temp);this puts in the variable fatto2 the value "0.0"
I tried also
double fatto2 = Double.valueOf(temp).doubleValue();and also this expression puts "0.0" in the variable.
I am struggling on this stupid issue :|
I think it might depend on the string being not only formed with numbers (there's the decimal dot) but I have no idea on how to solve it
somebody can give me a hint?!?!?
thanks

wow, you're right....
I wasn't using it as I was thinking
I filled that section with printlns and discovered that the one I was thinking to be the supposed value was a println popping up from somewhere else in the code......
stupid errors.....all the day coding, I'd better sleep, and I'll do it now :|
well....thanks a lot

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