Question

Question- How would I allow the program to run both upper and lower case letters. How would I write a switch statement for upper and lower cases to see if the value entered for Grade2 is a A or a?

C programming

int main()
{
char Grade2;
float gradepoint;
char Grade = 'X'; // Declares a character type variable named Grade

printf("Enter a grade\t"); // Prompts for Grade
scanf("%c", &Grade); // Inputs Grade

printf("Grade is: \t%c\n", Grade); // Prints the value of Grade
// Part 3 - using if else statements
if(Grade=='A')
{
printf("The Value of an A is 4.0");
}
else if(Grade=='B')
{
printf("The Value of a B is 3.0");
}
else if(Grade=='C')
{
printf("The Value of C is 2.0");
}
else if(Grade=='D')
{
printf("The Value of D is 1.0");
}
else if(Grade=='D')
{
printf("The Value of F is 0.0");
}
else if(Grade=='F')
{
printf("The value of <entered value of Grade> is not defined");
}
// Part 4- using switch-case-break statements
fflush(stdin); //This clears the scanf buffer

printf("\nEnter Grade2\t");
scanf("%c", &Grade2);

printf("Grade2 is: \t%c\n", Grade2);

Make Grade2= 'A' //changes entry to upper case only
Make gradepoint= 4.0f // sets grade-point to 4.0 if grade is 'A'
Print"Grade2:<tab><value of grade2>has value of<gradepoint formatted as 3.1>
getch();
return 0;
}

Answer 1

Below is the code for the above problem:

#include<stdio.h>
#include<stdlib.h>
int main()
{
char Grade2;
float gradepoint;
char Grade = 'X'; // Declares a character type variable named Grade

printf("Enter a grade\t"); // Prompts for Grade
scanf("%c", &Grade); // Inputs Grade

printf("Grade is: \t%c\n", Grade); // Prints the value of Grade
// Part 3 - using if else statements
if(Grade =='A' || Grade == 'a')
{
printf("The Value of %c is 4.0",Grade);
}
else if(Grade=='B' || Grade == 'b')
{
printf("The Value of %c is 3.0",Grade);
}
else if(Grade=='C' || Grade == 'c')
{
printf("The Value of %c is 2.0",Grade);
}
else if(Grade=='D' || Grade == 'd')
{
printf("The Value of %c is 1.0",Grade);
}
else if(Grade=='F' || Grade == 'f')
{
printf("The Value of %c is 0.0",Grade);
}
else
{
printf("The value of %c is not defined",Grade);
}
// Part 4- using switch-case-break statements
fflush(stdin); //This clears the scanf buffer
getchar();
printf("\nEnter Grade2\t");
scanf("%c", &Grade2);

printf("Grade2 is: \t%c\n", Grade2);
switch(Grade2)
{
case 'A':
case 'a': gradepoint = 4.0;
break;
case 'B':
case 'b': gradepoint = 3.0;
break;
case 'C':
case 'c': gradepoint = 2.0;
break;
case 'D':
case 'd': gradepoint = 1.0;
break;
case 'F':
case 'f': gradepoint = 0.0;
break;
default:
printf("The value of %c is not defined",Grade);
return 0;
}
printf("Grade2:\t%c has value of %0.1f\n",Grade2,gradepoint);
return 0;
}

OUTPUT: