Concept explainers
// This program uses a switch-case statement to assign a
// letter grade (A, B, C, D, or F) to a numeric test score.
#include <iostream>
using namespace std;
int main()
{
double testScore;
cout << “Enter your test score and I will tell you\n";
cout << "the letter grade you earned:
cin >> testScore;
switch (testScore)
{
case (testScore < 60.0):
cout << “Your grade is F.\n”;
break;
case (testScore < 70.0):
cout << "Your grade is D.\n";
break;
case (testScore < 80.0):
cout << "Your grade is C.\n";
break;
case (testScore < 90.0):
cout << "Your grade is B.\n";
break;
case (testScore <= 100.0):
cout << "Your grade is A.\n";
break;
default:
cout << “That score isn't valid\n";
return 0;
}
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