INTRO TO C Write a program that inputs a line of text with t

INTRO TO C

Write a program that inputs a line of text with the function fgets() into char array s[100]. Output the line in both uppercase and lowercase letters. Input string \"abcd1234ABCD\" to test your program

Solution

#include <stdio.h>
#include <ctype.h>

int main()
{
int i;
char s[100];//char array to store the string
printf(\"Enter the string:\ \");
// s is the char array, sizeof(s) gives the size of the char array s, stdin is the standard input defined in stdio.h
fgets(s,sizeof(s),stdin); // to get the input from the user using fgets
printf(\"Uppercase:\ \");
//loop to convert the string to uppercase
for (i = 0; i < sizeof(s); i++)
   {
       s[i]=toupper(s[i]);
   }
   printf(\"%s\", s);
   printf(\"Lowercase:\ \");
   //loop to convert the string to lowercase
   for (i = 0; i < sizeof(s); i++)
   {
       s[i]=tolower(s[i]);
   }
   printf(\"%s\", s);
return 0;
}

-------------------------output---------------
Enter the string:   
abcd1234ABCD
Uppercase:
ABCD1234ABCD
Lowercase:
abcd1234abcd

----------output ends---------------

Note: Feel free to ask doubts/queries. God bless you!!