2 Logical Expressions Use program Grade for Exercises 1-3. // Program Grade prints appropriate message based // grade read from the keyboard. #include using namespace std; int main(0
2 Logical Expressions Use program Grade for Exercises 1-3. // Program Grade prints appropriate message based // grade read from the keyboard. #include using namespace std; int main(0
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:2 Logical Expressions
Use program Grade for Exercises 1-3.
// Program Grade prints appropriate message based on a
// grade read from the keyboard.
#include <iostream>
using namespace std;
int main()
{
int grade;
cout << "Enter an integer grade between 50 and 100."
<< " Press return. " << endl;
cin >> grade;
if (/* FILL IN Logical Expression */)
cout <« "congratulations!" « endl;
return 0;
}
Exercise 1.
Fill in the logical expression beside the if so that “Congratulations!" is written if the numeric grade is
greater than or equal to 80. Run the program three times entering the following values for grade: 60,
80 and 95. Show your expression and the results for the three grade:
Exercise 2.
Change the logical expression in Exercise 1 so that “Try harder" is printed if the numeric grade is less
than 70. Run the program with three values for grade: 53, 69, and 85. Show your expression and the
results for the three grades
Exercise 3.
Change the logical expression so that “Average" is printed if the numeric grade is less than 80 but
greater than 70. Run the program with three values for grade: 67, 74, and 85. Show your expression and
the results for the three grades
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