Getting parseFloat to take things like "$1.0054e+10"
Hi,
I need to read in an excel file, some of the columns of which should be floating point numbers. The problem is that the format of the data in these columns can't be guaranteed, I may or may not get $ signs, I might get the 'e' exponential thing, I might even get commas in place of decimal points (as is done in Spanish).
Any suggestions on the best way to handle this? I guess I could start by checking each char in the string, and eliminate it if its ascii code falls outside the 0-9 range, and is not 'e' or ',' or '.'. But how on earth can I handle exponentials, and commas in place of points?
Thanks all
Rather than creating a new number parser from scratch look at the parsing abilities of DecimalFormat class and BigDecimal constructor BigDecimal(String val).
While you may still need to cleanup the input, these can probably reduce the amount of work required, as they both accept widely varied number formats.
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