study what the below code does. Copy/paste it into a project and run it. Then, after that, modify the program so that it has another exception named FailingInputException. If the user inputs a grade < 60, the program should display a message that we don't allow failing grades and then continue accepting grades. The final output should display a histogram of the numbers entered (the frequencies of the numbers entered). For example:

90 - 100: 12 times

80-89: 3 times

70-79: 7 times

60-69: 2 times

Make sure you submit your code in word document together with a screenshot of the output.

#include

using namespace std;

class NegativeInputException {

public:

NegativeInputException() {

cout << "End of input data reached ";

}

}; // end NegativeInputException class

int main() // Any exception can be raised

{

int new_grade, index, limit_1, limit_2;

int freq[10] = {0};

// Exception to deal with end of data

try {

while (true) {

cout << "Please input a grade or -1 to end: ";

cin >> new_grade;

if (new_grade < 0) // Terminating condition

throw NegativeInputException();

index = new_grade / 10;

{ try {

if (index > 9)

throw new_grade;

freq[index]++;

}

catch (int grade) { // Handler for index error

if (grade == 100)

freq[9]++;

else

cout << "Error: " << grade << " out of range! ";

} // end of catch(int grade)

} // end of inner try-catch pari

} // end of while

} // end of outer try block

catch (NegativeInputException e) { // Handler for negative

cout << "Limits Frequency ";

for (index = 0; index < 10; index++) {

limit_1 = 10 *index;

limit_2 = limit_1 + 9;

if (index == 9)

limit_2 = 100;

cout << limit_1 << " " << limit_2 << " " << freq[index]

<< endl;

} // end for

} // end catch (negative int)

system("pause");

}