Dynamic Object Creation

#include <iostream>
#include <string>
using namespace std;

class Student {
private:
    string name;
    int age;
    int* marks;
    int numSubjects;

public:
    Student(string n, int a, int nSub) {
        name = n;
        age = a;
        numSubjects = nSub;
        marks = new int[numSubjects];  // Dynamic array in object
    }
    
    void setMarks() {
        cout << "Enter marks for " << numSubjects << " subjects: ";
        for (int i = 0; i < numSubjects; i++) {
            cin >> marks[i];
        }
    }
    
    void display() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
        cout << "Marks: ";
        for (int i = 0; i < numSubjects; i++) {
            cout << marks[i] << " ";
        }
        cout << endl;
    }
    
    ~Student() {
        delete[] marks;  // Free dynamic array
        cout << "Destructor called for " << name << endl;
    }
};

int main() {
    // Dynamically create object
    Student* student1 = new Student("Alice", 20, 3);
    student1->setMarks();
    
    cout << "\nStudent 1:" << endl;
    student1->display();
    
    // Create another object
    Student* student2 = new Student("Bob", 19, 3);
    student2->setMarks();
    
    cout << "\nStudent 2:" << endl;
    student2->display();
    
    // Free objects
    delete student1;
    delete student2;
    
    cout << "\nObjects deleted" << endl;
    
    return 0;
}