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iOS Objective-C Basics (Retired) Fundamentals of C Variables

Printf statement

I need the output to say A ball with a radius of 14.5 inches. I cant figure this out. I need help.

1 Answer

Hi Garrett

I'm assuming your learning the printf function in C.

Also assuming you have the radius stored in a float variable named radius.

E.g

float radius = 14.5;
printf("A ball with a radius of %.2f inches\n", radius);

The %f is a format specifier that you use in the first argument, control string, of the printf function. When its printed it will be replaced with the current value of a variable of type float. I used .2 here to mean display only 2 decimal places, you could simply use %f and it will have the same result only with a greater number of decimal places.

Hope this helps.

Cheers

Adam