Question

In my application, i tried to convert NSString value to float using

NSString *value = [dict objectForKey:@"student_Percentage"];
float f = [value floatValue];

But I’m getting the value of f as 0.00000. I tried with NSNumberFormatter, NSNumber… but still get 0.00000.

Answer 1

floatValue returns 0.0 if the receiver doesn’t begin with a valid
text representation of a floating-point number.

[dict objectForKey:@"student_Percentage"] value should be like 8.9.
Remove double quotes from your string.

NSMutableString *value = [dict objectForKey:@"student_Percentage"];
[value replaceOccurrencesOfString:@"\"" withString:@"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [value length])];
float f = [value floatValue];