Complete the following class by adding a constructor, two accessors, and two mut

Question

Complete the following class by adding a constructor, two accessors, and

two mutators. The constructor should initialize all objects with firstNumber = 10 and

secondNumber = 15. Each accessor function should return the value of one of the data members,

and the two mutator functions should be capable of altering one of the data members.

// declaration section

class TwoNumbers

{

private

int firstNumber;

int secondNumber;

double average;

// function prototypes

};

// implementation section

b. Include the class written for Exercise 9a in the context of a complete program. The program

should create a single object and display the object’s values and the average of these values.

Explanation / Answer

#include <iostream>
using namespace std;

class TwoNumbers{
   private:
       int firstNumber;
       int secondNumber;
       double average;
   public:
       TwoNumbers(void){
           firstNumber = 10;
           secondNumber = 15;
       }
       void setFirstNumber(int x){
           firstNumber = x;
       }
       void setSecondNumber(int y){
           secondNumber = y;
       }
       int getFirstNumber(){
           return firstNumber;
       }
       int getSecondNumber(){
           return secondNumber;
       }
       double getAverage(){
           average = (firstNumber + secondNumber)/2.0;
           return average;
       }
};

int main() {
TwoNumbers t;
cout << t.getFirstNumber() << endl;
cout << t.getSecondNumber() << endl;
cout << t.getAverage() << endl;
}

/* sample output
10
15
12.5
*/

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