arrofobj.cpp

#include <iostream>
using namespace std;

class Student {
    string name, studentClass, section;
    string* subjects;
    char* grades;
    int numSubjects;

public:
    // Constructor to initialize the student details
    Student() {
        cout << "Enter student's name: ";
        cin >> name;
        cout << "Enter class: ";
        cin >> studentClass;
        cout << "Enter section: ";
        cin >> section;
        
        cout << "Enter number of subjects: ";
        cin >> numSubjects;
        
        // Dynamically allocate memory for subjects and grades
        subjects = new string[numSubjects];
        grades = new char[numSubjects];
        
        for (int i = 0; i < numSubjects; ++i) {
            cout << "Enter subject " << i + 1 << " name: ";
            cin >> subjects[i];
            
            cout << "Enter grade for " << subjects[i] << ": ";
            cin >> grades[i];
        }
    }

    // Function to display the student details
    void displayDetails() {
        cout << "\nStudent Details:\n";
        cout << "Name: " << name << endl;
        cout << "Class: " << studentClass << endl;
        cout << "Section: " << section << endl;

        cout << "\nSubjects and Grades:\n";
        for (int i = 0; i < numSubjects; ++i) {
            cout << "Subject: " << subjects[i] << " | Grade: " << grades[i] << endl;
        }
    }

    // Destructor
    ~Student() {
        // Free dynamically allocated memory
        delete[] subjects;
        delete[] grades;
        cout << "Student object destroyed.\n";
    }
};

int main() {
    int numStudents;
    cout << "Enter the number of students: ";
    cin >> numStudents;
    
    // Create an array of Student objects
    Student* students = new Student[numStudents];
    
    // Display details of each student
    for (int i = 0; i < numStudents; ++i) {
        cout << "\nEnter details for student " << i + 1 << ":\n";
        students[i].displayDetails();
    }

    // Free the array of objects
    delete[] students;

    return 0;
}