クラスでカウンターを表現する

Counter.h

#ifndef Counter_h
#define Counter_h

class Counter{
    protected:
        int val;

    public:
        void reset2zero();
        void upVal();
        int getVal();

        Counter(int initVal);
        Counter();
};
#endif

Counter.cpp

#include "Counter.h"

void Counter::reset2zero(){
    this->val = 0;
}
void Counter::upVal(){
    this->val++;
}
int Counter::getVal(){
    return this->val;
}

Counter::Counter(int initVal){
    this->val = initVal;
}
Counter::Counter(){
    reset2zero();
}

test.cpp

#include <iostream>
using namespace std;

#include "Counter.h"

int main(){
    const int n = 3;
    Counter cnt[n];
    cnt[0] = Counter(10);
    cnt[1] = Counter(100);

    for(int i=0; i<2 ; i++){cnt[0].upVal();}
    for(int i=0; i<4 ; i++){cnt[1].upVal();}
    for(int i=0; i<10; i++){cnt[2].upVal();}

    for(int i=0; i<n; i++){
        cout << cnt[i].getVal() << endl;
    }


    system("pause");
    return 0;
}