a simple C++ vector implementation with some applications

vector.cpp

//A Simple implementation of vector(containing objects of a class) data structure
#include <iostream>
#include <vector>
using namespace std;

class Salad{
    private:
        int oranges, apples;
    public:
        void setOranges(int numOranges){ oranges = numOranges; }
        void setApples(int numApples){ apples = numApples; }
        int getOranges(){ return oranges; }
        int getApples(){ return apples; }
};

int main(){
    //Instantiating a vector
    int numSalad = 7;   //vector size variable
    std::vector<Salad> saladVector;
    saladVector.resize(numSalad);

    //Performing set operations on vector elements
    for(int i = 0; i < numSalad; i++){
        saladVector[i].setApples(numSalad - i);
        saladVector[i].setOranges(0 + i);
    }

    //Performing print operations on vector elements
    for(int i = 0; i < numSalad; i++){
        cout << "Apples:" << saladVector[i].getApples() << "  Oranges:" << saladVector[i].getOranges() << endl;
    }

    //Delete a random element from the vector
    int numDel = rand() % numSalad + 0;
    saladVector.erase(saladVector.begin()+numDel);

    //Printing vector size
    cout << "size: " << saladVector.size() << endl;

    //Delete the last 2 elements
    saladVector.erase(saladVector.end(), saladVector.end()-2);

    //Printing vector size
    cout << "size: " << saladVector.size() << endl;
    
}