C program to identify Character key

 Q. Write a C program to find which character does the keyword belongs to and do Uppercase to Lowercase and Lowercase to Uppercase Conversion .

Ans:

#include<stdio.h>

int main()

{

char key;

printf("Press any Key:");

scanf("%c",&key);

if (key>=65 && key<=90)

printf("Uppercase, Lowercase Conversion=%c", key+32);

else if (key>=97 && key<=122)

printf("Lowercase, Uppercase Conversion=%c", key-32);

else if (key>=48 && key<=57)

printf("Digit=%c", key);

else 

printf("Symbol");

return 0;

}