RaiseTut_ExceptionHandle

#include <iostream>
#include <exception>

using namespace std; // Add this line to use std namespace

class InvalidResultException : public exception {
public:
    InvalidResultException(const string& message) : message(message) {}

    const string& getMessage() const {
        return message;
    }

private:
    string message;
};

class ExamResults {
private:
    int passedCount = 0;
    int failedCount = 0;

public:
    void enterTestResult(int result) {
        if (result == 1) {
            passedCount++;
        } else if (result == 2) {
            failedCount++;
        } else {
            throw InvalidResultException("Invalid input: Result must be 1 (passed) or 2 (failed).");
        }
    }

    void displaySummary() {
        cout << "Summary of Exam Results:" << endl;
        cout << "Number of students who passed: " << passedCount << endl;
        cout << "Number of students who failed: " << failedCount << endl;

        if (passedCount > 8) {
            cout << "Raise tuition." << endl;
        }
    }
};

int main() {
    ExamResults results;

    for (int i = 0; i < 10; i++) {
        int result;
        cout << "Enter result (1 for passed, 2 for failed): ";
        try {
            cin >> result;
            results.enterTestResult(result);
        } catch (InvalidResultException& e) {
            cerr << "Error: " << e.getMessage() << endl;
        }
    }

    results.displaySummary();

    return 0;
}