Please answer the question with C++ coding and explain the code Write a program to calculate students' average test scores and theirgrades. You may assume the following input data:Johnson 85 83 77 91 76Aniston 80 90 95 93 48Cooper 7881 11 90 73Gupta 92 83 30 69 87Blair 23 45 96 38 59Clark 60 85 45 39 67Kennedy 77 31 52 74 83Bronson 93 94 89 77 97Sunny 79 85 28 93 82Smith 85 72 49 75 63 Use three arrays: a one-dimensional array to store the students' names,a (parallel) two-dimensional array to store the test scores, and a parallelone-dimensional array to store grades. Your program must contain at leastthe following functions: a function to read and store data into two arrays,a function to calculate the average test score and grade, and a function tooutput the results. Have your program also output the class average.

Please follow the below Code://Header files #include<iostream> #include<fstream> #include<iomanip> #include<string> #include<math.h> //namespace statement. using namespace std; const int numTests = 5; const int numStudents = 10; // Theses are function prototypes void getData(ifstream &inFile, string names[numStudents], double tests[numStudents][numTests + 1]); //#1 double calculateAverage(double tests[]); //#2 char getLetterGrade(double grade); void printTests(ofstream &outFile, string names[numStudents], double tests[numStudents][numTests + 1], char grade[numStudents], double classAverage); //#3 int main() { // Declaring stream files ifstream inFile; inFile.open ("ch9_Ex13Data.txt"); // opens the input file ofstream outFile; outFile.open ("Ch9_Ex13Out.txt"); // Opens the output file string names[numStudents]; double tests[numStudents][numTests + 1]; char grade[numStudents]; //declaring arrays if(!inFile.is_open()) { //Terminates the program cout << "Error in opening file."; cout << "Program terminates." << endl; return 1; } // Display an error if the input file does not open. getData(inFile, names, tests); //gets data into arrays // Declaring Variables double runningAverage = 0.0, classAverage = 0.0; for(int i = 0; i < numStudents; i++) { tests[i][numTests] = calculateAverage(tests[i]); //storing the average in the last element of the tests array grade[i] = getLetterGrade(tests[i][numTests]); //gets letter grade runningAverage += tests[i][numTests]; //adds up all the averages from students } classAverage = runningAverage / numStudents; //calcs class average printTests(outFile, names, tests, grade, classAverage); //prints results system("pause"); return 0; } //reads in student test tests and name void getData(ifstream &inFile, string names[numStudents], double tests[numStudents][numTests + 1]) { for(int i = 0; i < numStudents; i++) { inFile >> names[i]; //gets name for(int j = 0; j < numTests ; j++) { inFile >> tests[i][j]; //gets test tests } } inFile.close (); //closing data file } // average the test tests for the student double calculateAverage(double tests[numTests]) { double total = 0; double average = 0.0; for(int i = 0; i < numTests; i++) { total += tests[i]; //gets test tests and adds to running total } average = total / numTests; //calcs the average return average; //returns the average } // determines and returns the students letter grade char getLetterGrade(double grade) { if (grade < 60) return 'F'; else if (grade < 70) return 'D'; else if (grade < 80) return 'C'; else if (grade < 90) return 'B'; else return 'A'; } void printTests(ofstream &outFile, string names[numStudents], double tests[numStudents][numTests + 1], char grade[numStudents], double classAverage) { //align the names to the left cout.setf(ios::left); cout << fixed << showpoint << setprecision (2); cout << setw(10) << "Name" << setw(9); cout.unsetf(ios::left); //align the test headings to the right cout.setf(ios::right); cout << "Test 1" << setw(8) << "Test 2" << setw(8) << "Test 3" << setw(8) <<"Test 4" << setw(8) << "Test 5" << setw(11) << "Average" << setw(8) << "Grade" << endl; //align the names to the left outFile.setf(ios::left); outFile << fixed << showpoint << setprecision (2); outFile << setw(10) << "Name" << setw(9); //align the test headings to the right outFile.setf(ios::right); outFile << "Test 1" << setw(8) << "Test 2" << setw(8) << "Test 3" << setw(8) <<"Test 4" << setw(8) << "Test 5" << setw(11) << "Average" << setw(8) << "Grade" << endl; // Read and write a students name from the input file for(int i = 0; i < numStudents; i++) { cout.unsetf(ios::right); cout.setf(ios::left); //align the names to the left cout << setw(10) << names[i] << setw(9); cout.unsetf(ios::left); cout.setf(ios::right); //align the tests to the right cout << fixed << showpoint << setprecision (2); outFile.unsetf(ios::right); outFile.setf(ios::left); //align the names to the left outFile << setw(10) << names[i] << setw(9); outFile.unsetf(ios::left); outFile.setf(ios::right); //align the tests to the right outFile << fixed << showpoint << setprecision (2); for(int j = 0; j < numTests + 1; j++) { if(j == numTests) //if it's time to print the average of the tests, needs special formatting { cout << setw(11) << tests[i][j]; cout << setw(6) << grade[i] << endl; outFile << setw(11) << tests[i][j]; outFile << setw(6) << grade[i] << endl; } else //otherwise just print the test score { cout << tests[i][j] << setw(8); outFile << tests[i][j] << setw(8); } } } cout << "\n\nClass average: " << classAverage << endl << endl;; outFile << "\n\nClass average: " << classAverage << endl << endl; //class average outFile.close (); //closing output file }

Engineering

Computer Science

Write a program to calculate students' average test scores and their grades. You may assume the following input data: Johnson 85 83 77 91 76 Aniston 80 90 95 93 48 Cooper 78 81 11 90 73 Gupta 92 83 30 69 87 Blair 23 45 96 38 59 Clark 60 85 45 39 67 Kennedy 77 31 52 74 83 Bronson 93 94 89 77 97 Sunny 79 85 28 93 82 Cmith OF 72 40

Write a program to calculate students' average test scores and their grades. You may assume the following input data: Johnson 85 83 77 91 76 Aniston 80 90 95 93 48 Cooper 78 81 11 90 73 Gupta 92 83 30 69 87 Blair 23 45 96 38 59 Clark 60 85 45 39 67 Kennedy 77 31 52 74 83 Bronson 93 94 89 77 97 Sunny 79 85 28 93 82 Cmith OF 72 40

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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