member function not recognizing member variables

[toast9]

I keep getting errors saying kSize and answerArray are undeclared identifiers. Am I missing something to get the member function to recognize member variables?

  using namespace std;

class Colors: public Key{
public:
   Colors(){};
   Colors(int numColors, bool duplicates){
      kSize = numColors;
      cDuplicates = duplicates;
      answerArray = new char[kSize];
   };
   ~Colors(){
      delete  answerArray;
   };
   
   //virtual void getCode();
   
   void randomChar();
   
   int getNumColors(){return cNumColors;};
   bool getDuplicates(){return cDuplicates;};

protected:
   int cNumColors;
   bool cDuplicates;
   char *answerArray;
};

//member function

void randomChar(){
   char letter = 'a';
   
   srand(unsigned(time(NULL)));
   
	int randomNum = (rand()%5)+1;
   
	for(int i = 0; i < kSize; i++){
      randomNum = (rand()%5)+1;

      switch(randomNum){
         case 1:
            letter = 'R';
            break;
         case 2:
            letter = 'Y';
            break;
         case 3:
            letter = 'G';
            break;
         case 4:
            letter = 'B';
            break;
         case 5:
            letter = 'P';
            break;
      }
      answerArray[i] = letter;
   }
   
   for(int i = 0; i < 4; i++){
      cout << answerArray[i];
   }
}

[TwilightSpectre]

You haven't declared randomChar() as a member function, rather as a seperate, freestanding function by itself. Try implementing it as the following:

void Colors::randomChar() {
    // ...
}

The Colors:: bit says that this is the randomChar function that is part of class/namespace Colors.

[toast9]

Ahhh thanks, completely forgot that!