Question

In C++

Write a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a member function that returns the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an exception. Demonstrate the class in program.

Answer 1

I have written the program using C++PROGRAMMING LANGUAGE.

OUTPUT :

input : 86, 11, 11, 39, 43, 56, 65, 77, 99 , 11

input : 86, -11, 11, 39, 143, 56, 65, -77, 99 , 11

CODE :

//included the required libraries

#include <iostream>

#include <exception>

using namespace std;

//exception class

class myexception: public exception

{

virtual const char* what() const throw()

{

return "Array consists of negative scores or scores which is more than 100!!!";//returning statement when exception comes to the console

}

} myex;

//class TestScores

class TestScores

{

public:

int *scores;

//Constructor

TestScores(int arr[])

{

scores = arr;//input array storing in scores pointer

}

double average();//function declaration

};

//function definition for average

double TestScores::average()

{

int average = 0;//declared average variable to zero

for (int i=0; i<10; i++)

{

//condition to check whether the score is negative or more than 100

//cout << scores[i]<<endl;

if(scores[i]>=0 && scores[i]<=100){

average+=scores[i];

}else{

average = 0;

throw myex;//throwing exception

}

}

return (average/10.0);//return average

}

//main method

int main() {

//initialized the scores integer array variable

int Scores[10] = {86, 11, 11, 39, 43, 56, 65, 77, 99 , 11};

TestScores TestScores_object(Scores);//TestScores object

//Calling average method and printing the result on the console

cout << "Average Score is : "<< TestScores_object.average();

}

Thanks..