C String Read
Scanf Syntax
To use scanf to read string from console we
need to use %s.
Example 1
The following code uses scanf to read a string from console.
#include <stdio.h>
int main()// ww w .ja va 2s .c o m
{
char me[20];
printf("What is your name?");
scanf("%s",&me);
printf("Darn glad to meet you, %s!\n",me);
return(0);
}
The code above generates the following result.
fgets Syntax
The standard function fgets can be used to read a string from the keyboard. The general form of an fgets call is:
fgets(name, sizeof(name), stdin);
The arguments are:
nameis the name of a character array.sizeof(name)indicates the maximum number of characters to read.stdinis the file to read.
Example 2
Read a line from the keyboard and reports its length.
#include <string.h>
#include <stdio.h>
//from w w w . j a v a 2 s .c o m
int main()
{
char line[100]; /* Line we are looking at */
printf("Enter a line: ");
fgets(line, sizeof(line), stdin);
printf("The length of the line is: %d\n", strlen(line));
return (0);
}
The code above generates the following result.
Example 3
Ask the user for his first and last name.
#include <stdio.h>
#include <string.h>
/*from ww w. jav a2 s. c om*/
int main() {
char first[100];
char last[100];
char full[200];
printf("Enter first name: ");
fgets(first, sizeof(first), stdin);
printf("Enter last name: ");
fgets(last, sizeof(last), stdin);
strcpy(full, first);
strcat(full, " ");
strcat(full, last);
printf("The name is %s\n", full);
return (0);
}
The code above generates the following result.
