C++ Classes

You instantiate classes like this one:

class Data{
    private:
        int id;
        string name;
    public:
        Data(int,string);
        void setId(int);
        void setName(string);
        int getId();
        string getName();
};

Data::Data(int d=0,string n="default"):id(d),name(n){

}

void Data::setId(int d=0){
    id = d;
}

void Data::setName(string nm="default"){
    name = nm;
}

int Data::getId(){
    return id;
}

string Data::getName(){
    return name;
}

Then after the above declaration, you can use:

    Data data(8,"lady gaga");
    cout << data.getId() << endl;
    cout << data.getName() << endl;

Or you can use:

   Data data;                   // without bracket
   data.setId(45);
   data.setName("Luna Maya");

C++ Classes