Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by ihab seif
ihab seif
231 Points

how to do a statement printf (%f "a_ball_with_a_radius,\n")

how to print a statement

variable_assignment.mm 
 printf (%f "a_ball_with_a_radius,\n")
float radius = 14.5;

2 Answers

Enrique Munguía
Enrique Munguía
14,311 Points
Enrique Munguía
Enrique Munguía
14,311 Points

The format specifier (%f) must be between the quotes, and your variable must be declared before you can print it.

float radius = 14.5;
printf ("a ball with a radius %f \n", radius)
ihab seif
ihab seif
231 Points

no working for some reason

ihab seif
ihab seif
231 Points

no working for some reason

ihab seif
ihab seif
231 Points
ihab seif
ihab seif
231 Points

thanks ENRIQUE .