Why am i getting a zero in my C++ program? i am just a beginner please help me!!!?

this is my code:


#include%26lt;iostream%26gt;


#include %26lt;iomanip%26gt;





using std::cout;


using std::cin;


using std::endl;


using std::setprecision;


using std::fixed;





//fucntion prototype


void getTestScores(double%26amp;, double%26amp;, double%26amp;);


double calcAverage(double%26amp;, double%26amp;, double%26amp;);


void displayAverage(double);





int main ()


{


//decalare variables


double test1 = 0.0;


double test2 = 0.0;


double test3 = 0.0;


double average = 0.0;


double getAverage = 0.0;





//enter functions to het input items


getTestScores(test1, test2, test3);


getAverage = calcAverage(test1, test2, test3);


displayAverage(average);





return 0;


} //end of main function





//**program defined functions ****


void getTestScores(double %26amp;test1, double %26amp;test2, double %26amp;test3)


{


cout %26lt;%26lt; "Enter the first score: ";


cin %26gt;%26gt; test1;


cout %26lt;%26lt; "Enter the second score: " ;


cin %26gt;%26gt; test2;


cout %26lt;%26lt; "Enter the third score: " ;


cin %26gt;%26gt; test3;


}

Why am i getting a zero in my C++ program? i am just a beginner please help me!!!?
displayAverage(average);





You are sending it the wrong value. your code needs to be





displayAverage(getAverage);
Reply:you can do away with both 'average' and 'getaverage'....





displayAverage(calcAverage(t1,t2,t3));
Reply:instead of


getAverage = calcAverage(test1, test2, test3);





it should be





average = calcAverage(test1, test2, test3);

sound cards