class MyClass
{
    public:
        MyClass(string item)
        {
            _item = item.c_str();
            std::cout << "Constructor: " << _item << endl;
        }

        void printItem()
        {
           std::cout << "Print:" << _item << endl;
        }

    private:
        const char* _item;
};

int main(int argc, char* argv[])
{
    MyClass my("www.somewebsite.com");
    my.printItem();
    return 0;
}

Constructor: abc
Print: abc

Constructor: www.somewebsite.com
Print: