Returns no correct

[epicred]

Not sure why, I'm just trying to test out my program with my print function. If I type in 5.0 for my cost and 5.0 for my tax. It does not return 5.0 but some random numbers?

#include <iostream>

class computeTip
{
       private: 
                double cost;
                double taxRate;
       public:
              
              void setCost(double);
              void setTax(double);
              void print();
                           
};


void computeTip::setCost(double c){
     
     cost = c;                           
}    

void computeTip::setTax(double t){
     
     taxRate = t;
}


void computeTip::print()
{
 std::cout << cost << std:: endl;
 std::cout << taxRate;    
}


int main()
{
    
    computeTip newTip;
    
    double a;
    double b;
    
    newTip.setCost(a);
    
    std::cin >> a;
    
    newTip.setTax(b);
    
    std::cin >> b;
    
    newTip.print();
    
    
 system("PAUSE");
 return 0;   
    
}

[Parasin]

your problem lies in that you are asking the user for the input AFTER you are calling the function to set both cost and tax.

Ask first, set the value second.