After hitting enter to get the user input using scanf, just a new line created

Question

after running the program it asks for age but do not take the input

int main()
{
float age1, age2, age3, avg;
age1 = age2 = 24.0;
printf("How old are you?\n");
scanf("%f\n",&age3);

avg = (age1+age2+age3)/3;
printf("the average age is %f\n",avg);
return 0;
}

remove `\n` in scanf statement or you can put it before format specifier like `\n%f` — Rishi Malviya, Jun 02 '17 at 13:09
Seriously age in the float? why so we don't say i m 24.25 years old? perhaps unsigned int? — danglingpointer, Jun 02 '17 at 13:32
Possible duplicate of [Using "\n" in scanf() in C](https://stackoverflow.com/questions/15443483/using-n-in-scanf-in-c) — Govind Parmar, Jun 02 '17 at 13:48

score 2 · Answer 1 · answered Jun 02 '17 at 12:50

Remove the \n from the end of your scanf() format. Any run of one or more whitespace characters (e.g. spaces, tabs, newlines, ...) in the format matches a run of any number of the same. Thus, your scanf() keeps matching whitespace -- as many newlines as you choose to enter, for example -- until it sees the next non-whitespace character.

score 0 · Answer 2 · answered Jun 02 '17 at 12:52

0

The \n in scanf("%f\n",&age3); is causing the problem. remove the \n. refer Using "\n" in scanf() in C

answered Jun 02 '17 at 12:52

LearningC

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score 0 · Answer 3 · edited Jun 02 '17 at 13:47

0

scanf("%f",&age3); Try with this

edited Jun 02 '17 at 13:47

Govind Parmar

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answered Jun 02 '17 at 12:55

Akitha_MJ

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After hitting enter to get the user input using scanf, just a new line created

3 Answers3