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

class BetterArray
{
private:
	int data[100];
	int length;

public:
	BetterArray();
	void Append(int x);
	void Print();
	int GetLength() { return length; }
};

BetterArray::BetterArray()
{
	for (int i = 0; i < 100; i++) {
		data[i] = 0;
	}
	length = 0;
}

void BetterArray::Print()
{
	cout << "[";
	for (int i = 0; i < length - 1; i++)
	{
		cout << data[i] << ",";
	}
	cout << data[length-1] << "]";
	cout << endl;
}

void 
BetterArray::Append(int x)
{
	data[length] = x;
	length++;
}

int main()
{
	BetterArray sally;
	sally.Append(7);
	sally.Append(15);
	sally.Append(3);
	sally.Print(); // like: [7, 15, 3]

	system("pause");

	return 0;
}