# Guide to Implementing a Student Grade Calculator in C++ If you're new to C++ and looking for a practical, beginner-friendly project, building a **Student Grade Calculator** is a great place to start. It combines basic programming concepts like variables, loops, conditionals, and functions—all while solving a real-world problem. In this guide, you’ll learn how to create a simple program that: - Asks for a student’s name and scores - Calculates the average - Assigns a letter grade (A, B, C, etc.) Let’s code step by step! --- ## Step 1: Plan Your Program Before writing code, think about what your program should do: 1. Get the student’s name. 2. Ask for a few subject scores (e.g., 3 subjects). 3. Compute the average. 4. Determine the letter grade based on the average. 5. Display the results. This keeps things simple and manageable for beginners. --- ## Step 2: Set Up the Basics Start with the standard C++ structure: ```cpp #include #include using namespace std; int main() { // Your code will go here return 0; } ``` We include `` for input/output and `` to handle the student’s name. --- ## Step 3: Get Input from the User Ask for the student’s name and three subject scores: ```cpp string name; double score1, score2, score3; cout << "Enter student name: "; getline(cin, name); cout << "Enter score for Subject 1: "; cin >> score1; cout << "Enter score for Subject 2: "; cin >> score2; cout << "Enter score for Subject 3: "; cin >> score3; ``` ## Step 4: Calculate the Average Add the scores and divide by 3: ```cpp double average = (score1 + score2 + score3) / 3.0; ``` Using `3.0` (instead of `3`) ensures the result is a decimal (`double`), not an integer. --- ## Step 5: Assign a Letter Grade Use `if-else` statements to convert the average into a letter grade: ```cpp char grade; if (average >= 90) { grade = 'A'; } else if (average >= 80) { grade = 'B'; } else if (average >= 70) { grade = 'C'; } else if (average >= 60) { grade = 'D'; } else { grade = 'F'; } ``` This follows a common grading scale (you can adjust it as needed). --- ## Step 6: Display the Results Show the student’s name, average, and grade: ```cpp cout << "\n--- Report Card ---" << endl; cout << "Student: " << name << endl; cout << "Average Score: " << average << endl; cout << "Grade: " << grade << endl; ``` --- ## Full Code Example Putting it all together: ```cpp #include #include using namespace std; int main() { string name; double score1, score2, score3; cout << "Enter student name: "; getline(cin, name); cout << "Enter score for Subject 1: "; cin >> score1; cout << "Enter score for Subject 2: "; cin >> score2; cout << "Enter score for Subject 3: "; cin >> score3; double average = (score1 + score2 + score3) / 3.0; char grade; if (average >= 90) grade = 'A'; else if (average >= 80) grade = 'B'; else if (average >= 70) grade = 'C'; else if (average >= 60) grade = 'D'; else grade = 'F'; cout << "\n--- Report Card ---" << endl; cout << "Student: " << name << endl; cout << "Average Score: " << average << endl; cout << "Grade: " << grade << endl; return 0; } ```

Tag: StudentProjects