Question

File Edit View History Bookmarks Tools Help Share GEP IIIA Moorhead, MN 10-Day Weathe X N NDSU Faculty and Staff | North x D C#.NET - CSCI 213: Modern Sol X VitalSource Bookshelf: Starting x + + → OO - https://bookshelf.vitalsource.com/#/books/9780134400433/cf1/6 90% *** * Cambie Meble alle... S N 10 Crosby Derek Lam ... Alterna Caviar Anti-Ag... U C# Tutorial For Beginn... BE Celsius Fahrenheit con... Charter Club Sweater. Folklorama invalid 0 < Chapter 7 Arrays and... 4. Driver's License Exam The local driver's license office has asked you to create an application that grades the written portion of Go to Chapter 7 Arrays and Lists the driver's license exam. The exam has 20 multiple choice questions. Here are the correct answers: 298 7.2 Array Basics 1.B 2D 3. A 4. A 5. C 7.3 Working with Files and Arrays 6. A 7.B 8. A 9.C 10. D 11. B 120 13.D 14. A 15. D 7.4 Passing Arrays as Arguments to Methods 16. C 17.C 18. B 19.D 20. A 7.5 Some Useful Array Algorithms 7.6 Advanced Algorithms for Sorting and Searching Arrays 442 7.7 Two-Dimensional Arrays 451 7.8 Jagged Arrays Your program should store these correct answers in an array. The program should read the student's answers for each of the 20 questions from a text file and store the answers in another array. (Create your own text file to test the application) After the student's answers have been read from the file, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam.) It should then display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the question numbers of the incorrectly answered questions 5. World Series Champions In the Chapo7 folder of the Student Sample Programs, you will find the following files: Teams.txt-This file contains a list of several Major League baseball teams in alphabetical order. Each team listed in the file has won the World Series at least once. We ve updated our read aloud feature! . WorldSeriesWinners.txt-This file contains a chronological list of the Wor " Give it a try here. 1903 through 2012. (The first line in the file is the name of the team that - Aa 100F 452 7.9 The List Collection 464 Key Terms 464 Review Questions 468 DA 1489 Type here to search I e + 7:37 PM 540 & 1/10/2019 Desktop I"

Please answer Question 4 WITH A C# PROGRAM!!!!!!

THANK YOU!

Answer 1

Note: Done accordingly. Please uprate. Please comment for further help.

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GradesFromFile
{
class Program
{
static void Main(string[] args)
{
//answers array
char[] answers = new char[]{'B','D','A','A','C','A','B','A','C','D','B','C','D','A','D','C','C','B','D','A'};
char[] studentResponse = new char[20]; //student response array
int[] correct = new int[20]; //correct answer array
int correctAnswersCount = 0; //total count of correct answers
  
//temporary variables
int j=0;
string line;

//file stream
System.IO.StreamReader file =
new System.IO.StreamReader(@"student.txt");

//reading file line by line
while ((line = file.ReadLine()) != null)
{
studentResponse[j] = line[0]; //storing char in array
j++; //increasing index
}
file.Close();//close file
//checking for correct answer
for (int i = 0; i < 20; i++)
{
if (answers[i] == studentResponse[i])
{
correct[i] = 1; //setting correct answer array to 1 if correct
correctAnswersCount++; //incrementing correct answer count
}
else
{
correct[i] = 0;//setting correct answer array to 0 if incorrect
}
}
//checking if answer count is greater than 15 then student will pass
if (correctAnswersCount >= 15)
{
Console.WriteLine("Student has passed.");
}
else
{
Console.WriteLine("Student has failed."); //for score less than 15 then failed
}
//displaying results
Console.WriteLine("Correct Answers :" + correctAnswersCount);
Console.WriteLine("Incorrect Answers :" + (20-correctAnswersCount));
Console.Write("Incorrect Answers :");
//displaying incorrect answers
for (int i = 0; i < 20; i++)
{
if (correct[i] == 0)
{
Console.Write((i+1)+" ");
}
}

Console.ReadKey();
}
}
}

student.txt

B
D
A
C
C
A
B
C
B
A
B
C
D
A
D
B
C
B
D
A

Output:

file:///C:/users/faraz/documents/visual studio 2012/Project Student has failed. Correct Answers :13 Incorrect Answers :7 Incorrect Answers :4 8 9 10 11 12 16

file:///C:/users/faraz/documents/visual studio 2012/Project Student has passed. Correct Answers :15 Incorrect Answers :5 Incorrect Answers :4 8 9 10 16