Thread: Simple class problem

  1. #1
    Registered User
    Join Date
    Sep 2003

    Simple class problem

    I am pretty new to C++ and I am trying to write a BlackJack program to help me learn how to implement classes. So far I only have a Deck class and I am having trouble making it set up the deck and shuffle the cards. I have been able to set up the deck and shuffle the cards by not using classes, so I feel the error is in the way I set up my class or defined the member functions. The program compiles fine, but then kicks out with a generic error message when trying to run it.

    I feel like I have tried everything, but have not been able to make it work. Do I need to use pointers somewhere? Is that the problem? Pointers are definitly a weak suit for me as I have never programmed in a language which uses them before. And I have not really done a lot of programming in any language. I appreciate you taking the time to give me some help.

    // This is a blackjack game in c++
    #include <iostream>
    #include <string>
    #include <vector>
    #include <algorithm>
    using namespace std;
    // come back and put classes in there own header files
    class Deck {
    		vector<string> cards;
    		void shuffle();
    		void set_up_deck();
    		string plainCards[52];
    void Deck::shuffle() {
    	random_shuffle(cards.begin(), cards.end());
    void Deck::set_up_deck() {
    	string plainCards[52] = {"Ace","2","3","4","5","6","7","8","9","10","J","Q","K","Ace","2","3","4","5","6","7","8","9","10","J","Q","K","Ace","2","3","4","5","6","7","8","9","10","J","Q","K","Ace","2","3","4","5","6","7","8","9","10","J","Q","K"};
    	vector<string> cards (52);
    	for (int i=0; i<52; i++) {
    		cards[i] = plainCards[i];
    int main() {
    cout << "Blackjack test" << endl;
    Deck deck1;
    cout << "Here are the unshuffled cards" << endl;
    for (int j=0; j<10; j++) {
    	cout <<[j] << ",";
    cout << "Here are the shuffled cards" << endl;
    for (int j=0; j<10; j++) {
    	cout <<[j] << ",";
    return 0;	

  2. #2
    Senior Member joshdick's Avatar
    Join Date
    Nov 2002
    Phildelphia, PA
    I've coded a couple of card games, and I went about it differently. I have a card class that includes the suit and face value of a card. Then, I just throw my cards into whatever container I want. I usually used vectors and queues for that. If I remember correctly, I filled up a vector with cards. Then, I shuffled them in the vector and enqueued them all into a queue to better represent a deck. I don't know if that's the way you want to go, though. Just a thought.

    "The computer programmer is a creator of universes for which he alone is responsible. Universes of virtually unlimited complexity can be created in the form of computer programs." -- Joseph Weizenbaum.

    "If you cannot grok the overall structure of a program while taking a shower, you are not ready to code it." -- Richard Pattis.

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