HOW TO GET AN INPUT FROM USER
Here, we use scanf keyword to get an input value from user.
/* C program to take the name of the user as input and print "Hello <user name>" on console. */
// include header file using pre-processor(pp:)
#include<stdio.h>
// main function with int return type
int main()
{
// variable to store user name
// 26 here denotes this variable can store 26 characters
char user_name[26];
// get username form user as input
printf("Enter your name \n");
scanf("%s", user_name);
printf("Hello %s", user_name);
// terminate code using return keyword
// return is not required when main function return type is void
return 0;
}
OUTPUT → Enter your name
Triangulartechies
Hello Triangulartechies (final output displayed)
BRIEF EXPLAINATION
The above example is a simple C program that takes the user name as input and displays their name on the console. Here user_name is used as a variable that can hold 26 characters in its value. Note that we have not defined what functions like printf() and scanf() do but, their definitions are included in header file stdio.h.
