public String toString(){
	String deckResult="Your deck"+"\n";
	//Only one card to add to deckResult
	if (deck.size()==1){
	    deckResult+=deck.get(0);
	}
	else{
	    for (int i = 0; i<deck.size(); i++){
		//5 cards per line
		if (i%5==0)
		    deckResult+="\n";
		//No comma at the end of the string
		if(i == deck.size()-1)
		    deckResult+=deck.get(i);
		else
		    deckResult+=deck.get(i) + ", ";
	    }
	    //deck is empty
	    if (deck.size()==0)
		deckResult="NO MORE CARDS IN THE DECK";
	}
	return deckResult;
    }