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Nebeyou Esayas
304 PointsChallenge Task 2 of 2 Variable Assignment
Isn't this correct, if not please explain how and why and include the correct way.
float radius=14.5; printf("%f A ball with a radius of 14.5 inches.\n"radius);
1 Answer
Pierre Thalamy
4,494 PointsIt seems that you need some explanations on how the printf function works.
Here is the correct solution to the exercise:
float radius = 14.5;
printf("A ball with a radius of %f inches.\n", radius);
As you can see, 14.5 is not explicitly specified in the string, but %f appears instead. It will be replaced by the value of the float variable positioned after the comma.
Below is another example on how to use the printf function.
int a = 1;
float b = 2.0;
char c = 'T';
printf("a: %d, b: %f, c: %c\n", a, b, c); // prints "a: 1, b: 2.0, c: T
printf("c: %c, a: %d, b: %f\n", c, a, b); // prints "c: T, a: 1, b: 2.0
Feel free to ask if you have any question.
Nebeyou Esayas
304 PointsNebeyou Esayas
304 PointsThanks so much but I have another question, so we use the %f and such to replace the variable then name it after?
Pierre Thalamy
4,494 PointsPierre Thalamy
4,494 PointsYes, you use format specifiers such as %f for a float variable, %d for an int, %c for a char, etc... You can refer to this link to find other format specifiers.
Basically, the variable arguments have to appear in the same order as their related format specifiers appear in the string. This is why I provided you with my second example.
Is that clear?