Back to: C
We are providing Input whenever we feed data into a program. Input is achieved by using the standard input/output library. To include the library we need to add the stdio header:
#include <stdio.h>Then we have access to the scanf() function. The scanf() function reads input from the standard input/output stream, stdin and scans the input. We can use scanf() to get user input. scanf() takes 2 arguments, the format specifier of the variable and the reference operator. Table 1 shows the different format specifiers.
scanf("%A", &variableOfAType);The reference operator stored the memory address of the variable. scanf() can be used to accept multiple inputs!
scanf("%d" %c, &myNum, &myChar);| data type | value of A |
|---|---|
| int | %d |
| float | %f |
| char | %c |
| long | %l or %ld |
| double | %lf |