#include <iostream>

using namespace std;

const float WEIGHT = 1.0;

class A {
    public:
        A();
        A(int initialCount);

        float mWeight;
        int mCount;
};

A::A(int initialCount) :
        mCount(initialCount),
        mWeight(mCount*WEIGHT)
{
}

int main()
{
    A objA(15);
    cout<<objA.mWeight<<endl;

    return 0;
}