Thread: Accessing values of class objects

  1. #1
    Registered User
    Join Date
    Dec 2009
    Posts
    2

    Accessing values of class objects

    I am building a program requiring making some classes with inheritance. I can't seem to be able to access the members of the class objects. My code looks like this:

    Code:
    #include <iostream.h>
    #include <stdlib.h>
    #include <time.h>
    
    class Animal{
          public:
          int number;
          int legs;
          Animal(){
               number = rand()%9;
               }
          };
          
    class Fish : public Animal{
          public:
          Fish () : Animal (){
               legs = 0;
               }
          
          };
          
    class Bird : public Animal{
          public:
          Bird () : Animal (){
               legs = 2;
               }
          };
          
    class Insect : public Animal{
          public:
          Insect () : Animal (){
               legs = 6;
               }
          };
          
    
                
    int main() {
        
        Animal *a, *b, *x;
        
        a = new Fish;
        b = new Bird;
        x = new Insect;
        
        cout<< a.number << "\t" << a.legs << endl;
        cout<< b.number << "\t" << b.legs << endl;
        cout<< x.number << "\t" << x.legs << endl;
        
        system("pause");
        return 0;
    }
    Basically, all animals have a random number, and each animal type has a different number of legs. When running, I get an error saying that 'number' and 'legs' are not declared. Help?

  2. #2
    Registered User
    Join Date
    Sep 2004
    Location
    California
    Posts
    3,268
    I think you meant to do this:
    Code:
    cout<< a->number << "\t" << a->legs << endl;
    bit∙hub [bit-huhb] n. A source and destination for information.

  3. #3
    Registered User
    Join Date
    Dec 2009
    Posts
    2

    Solved!

    Awesome! Exactly what I needed... Thanks!

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