Needs to be answered in c#, windows form application please insert a screenshot
ID: 3779801 • Letter: N
Question
Needs to be answered in c#, windows form application
please insert a screenshot of the outcome! thank you!
The local driver's license office has asked you to create an application that grades the written portion of the driver's license exam. The exam has 20 multiple-choice questions. Here are the correct answers: 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.Explanation / Answer
Please follow the code and comments fo rdescription :
CODE :
#include <iostream> // required header files
#include <fstream>
#include <cstring>
using namespace std;
int main () { // driver method
string line; // local variables
ifstream myfile ("answers.txt");
char data[1024];
int wrong[20];
int count = 0, m = 0;
char correct[] = {'B', 'D', 'A', 'A', 'C', 'A', 'B', 'A', 'C', 'D', 'B', 'C', 'D', 'A', 'D', 'C', 'C', 'B', 'D', 'A'}; // correct array
if (myfile.is_open()) // open the file
{
while ( getline (myfile,line) ) { // iterate over the data
strncpy(data, line.c_str(), sizeof(data)); // copy the file data to a array
data[sizeof(data) - 1] = 0; // set the other data to 0
}
for(int i = 0; i < 20; i++) { // iterate to check for the data equal
if(correct[i] == data[i]) {
count++; // increment the count
} else {
wrong[m] = (i + 1); // add the list to the array
m++;
}
}
cout << "The Correct Answers Count is : " << count << endl; // print the data to console
cout << "The Incorrect Answers Count is : " << (20 - count) << endl;
cout << "The Wrong Question Numbers are : " << endl;
for(int j = 0; j < 20; j++) {
cout << wrong[j] << endl; // message
}
myfile.close(); // close the file
} else {
cout << "Unable to open file"; // message
}
return 0;
}
OUTPUT :
The Correct Answers Count is : 14
The Incorrect Answers Count is : 6
The Wrong Question Numbers are :
9
10
12
13
19
20
answers.txt :
BDAACABADCBDCADCCBAD
Hope this is helpful.
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