Creating a Vector of Class Objects in C++

// C++ Program to create
// a vector of class objects
#include <iostream>
#include <string>
#include <vector>

using namespace std;

int randomInt(int start, int range)
{
    // A function to generate random numbers
    return (start + rand() % range);
}

string randomString(int len)
{
    // A function to generate random strings of length -->
    // "len"
    string str;
    for (int i = 0; i < len; i++) {
        char ch = 'A' + rand() % 26;
        str.push_back(ch);
    }
    return str;
}

class Student {
    int roll;
    string name;
    int age;
    int marks;

public:
    void getter()
    {
        roll = randomInt(100, 50);
        name = randomString(10);
        age = randomInt(10, 10);
        marks = randomInt(200, 300);
    }
    void disp()
    {
        cout << roll << "\t" << name << "\t" << age << "\t"
             << marks << "\n";
    }
};

int main()
{
    // Vector of class objects
    vector<Student> v;
    Student s;

    for (int i = 0; i < 10; i++) {
        // getting the random values from
        // functions
        s.getter();
        // inserting objects to vector
        v.push_back(s);
    }

    for (int i = 0; i < 10; i++) {
        // displaying object data
        v[i].disp();
    }

    return 0;
}

// C++ Program to create
// a vector of class objects
// code for Example 2
#include <iostream>
#include <vector>

using namespace std;

class Land {
public:
    string name;
};

int main()
{
    // vector of class
    vector<Land*> sites;

    // Dynamic Memory Allocated
    Land* s1 = new Land();
    s1->name = "abc";

    Land* s2 = new Land();
    s2->name = "xyz";

    sites.push_back(s1);
    sites.push_back(s2);

    for (auto it : sites) {
        cout << "Owner:" << it->name
             << "  Address_of_Land:" << it << endl;
    }

    return 0;
}