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 2 years ago
Hi, does anybody know how to determine whether an input string (from raw_input) is a float? I know isdigit() works for int types, but what of float types? Or, is the only solution converting the string to a float(),and then assuming the program will crash for nonfloat input values?
 2 years ago
Hi, does anybody know how to determine whether an input string (from raw_input) is a float? I know isdigit() works for int types, but what of float types? Or, is the only solution converting the string to a float(),and then assuming the program will crash for nonfloat input values?

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KonradZuse
 2 years ago
Best ResponseYou've already chosen the best response.0depends on the language, but yes you can say Float.ParseFloat(string); in Java....

KonradZuse
 2 years ago
Best ResponseYou've already chosen the best response.0http://openstudy.com/study#/updates/50fba568e4b010aceb3312fb Someoen asked this yesterday in C it's Convert.

madweekay
 2 years ago
Best ResponseYou've already chosen the best response.0I should clarify: This is for Python

rsmith6559
 2 years ago
Best ResponseYou've already chosen the best response.1You could do something like: try: x = float( raw_input( "> " ) ) except: #handle it not being a float

madweekay
 2 years ago
Best ResponseYou've already chosen the best response.0Thanks, this is pretty much what I'm going to do. I just wasn't sure if there was a built in function like isdigit()

rsmith6559
 2 years ago
Best ResponseYou've already chosen the best response.1There are always regular expressions. "\d*\.?\d*" off the top of my head.
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