What's the difference between float and double?

Question

When I run the following code ,

NSString* s= @\"10000000.01\";
float f = [s floatValue];
double d = [s doubleValue];

if(f > 10000000)
{
    NSLog(@\"Ove         


        

Answer 1

Double

1. Represents a 64-bit floating-point number.
2. Has a precision of at least 15 decimal digits.

Float

1. Float represents a 32-bit floating-point number.
2. precision of Float can be as little as 6 decimal digits.

The appropriate floating-point type to use depends on the nature and range of values you need to work with in your code. In situations where either type would be appropriate, Double is preferred.