1 Write a program to ask the user to input an ASCII characte

1. Write a program to ask the user to input an ASCII character. Remember 0 through 9 are numeric ASCII characters as well. If the user enters any character other than the numeric character, inform the user that it is an invalid entry. If the user enters a numeric character, then add 5 to the numeric value and display the result. For example, if the user enters 5, display 10. You CANNOT ask the user to enter an integer. You need only one if-else statement to solve this problem and CANNOT use more than one if-else. Don’t use switch-case.

Solution

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

int main(void)
{
   char asciiChar;
   int asciivalue;
  
printf(\"\ Enter an ASCII character\");
scanf(\"%c\",&asciiChar);
asciiChar=asciiChar - \'0\'; // return actual value of char

printf(\"\ Ascii Character=%d\",asciiChar);
asciivalue=(int)asciiChar;
printf(\"\ Ascii value=%d\",asciivalue);

if(isdigit(asciiChar)!=0)
{
   printf(\"\ %c is an invalid entry\",asciiChar);
}
else
{
asciivalue=asciivalue +5;

printf(\"\ Ascii value after adding 5 : %d\",asciivalue);
}

   return 0;
}

Output:

Success time: 0 memory: 2172 signal:0