Question

The local driver’s license office has asked you to write a program that grades the written portion of the driver’s license Rules and Signals Test. The driver license test has 25 multiple choice questions. The set of answer keys is:

1.A 6.B 11.C 16.B 2 21.B

2.C 7.C 12.A 17.A 22.C

3.B 8.D 13.B 18.C 23.A

4.B 9.A 14.C 19.A 24.D

5.D 10.B 15.A 20.D 25.B

First, the application displays messages to ask for the information of current candidate about last name, first name, SS number to create a Test account When the canidate is ready, display the test instruction, questions and read answers

DRIVER LICENSE TEST

THERE ARE 25 MULTIPLE CHOICE QUESTIONS

YOU HAVE TO GET 20 CORRECT ANSWERS TO GET PASSED

------------------------------------------------

Question 1: _ The users answer the question by typing a letter A, B, C or D for each question. If users type other keys than A, B, C or D; display message “Invalid key – Retype” and allow users to retype the answer of current question before moving on

All the answers and the key set should be sent to the Test account in array type to evaluate the result.

The result will be displayed on the screen in the following format, where the date is current date and Driver’s license number is a combination of two random 4-digit numbers

DRIVER LICENSE TEST RESULT

Driver’s name: Smith, James

SS Number: 112233440

Phone Number: 2141234567

Address: 123 Plano Rd Dallas TX 75243

Driver’s License: 12345678

Test date: 03/15/2018

Result: PASSED

Missed Questions: 5, 12, 15

The program will be available for other candidates to test until users choose to exit

This program is in java

Answer 1

Note: Could you plz go this code and let me know if u need any changes in this.Thank You
_________________

DriveExam.java

class DriveExam {

// an array of student's answers.

private final String[] correctAnswers = { "B", "D", "A", "A", "C", "A",

"B", "A", "C", "D", "B", "C", "D", "A", "D", "C", "C", "B", "D",

"A" };

// Store the User answers

private final String[] userAnswers;

int[] missed = new int[correctAnswers.length];

// Process the user answers

public DriveExam(String[] Answers) {

userAnswers = new String[Answers.length];

for (int i = 0; i < Answers.length; i++) {

userAnswers[i] = Answers[i];

}

}

// return boolean value if correct answers > 15

public boolean passed() {

if (totalCorrect() >= 15)

return true;

else

return false;

}

// total Correct answers

public int totalCorrect() {

int correctCount = 0;

for (int i = 0; i < correctAnswers.length; i++) {

if (userAnswers[i].equalsIgnoreCase(correctAnswers[i])) {

// missed [correctCount]= i;

correctCount++;

}

}

return correctCount;

}

// total Correct answers

public int totalInCorrect() {

int incorrectCount = 0;

for (int i = 0; i < correctAnswers.length; i++) {

if (!userAnswers[i].equalsIgnoreCase(correctAnswers[i])) {

missed[incorrectCount] = i;

incorrectCount++;

}

}

return incorrectCount;

}

// Missed questions.

public int[] questionMissed() {

return missed;

}

public void displayUserAnswers()

{

System.out.println("Student Answers :");

for(int i=0;i<userAnswers.length;i++)

{

System.out.print(userAnswers[i]+" ");

}

System.out.println();

}

}

___________________________

ExamApplication.java

import java.util.Scanner;
public class ExamApplication
{
public static void main(String[]args)
{
System.out.println("Driver's Lincense Exam");
  
//scanner class object is used to read the inputs entered by the user
Scanner kb=new Scanner(System.in);
  
System.out.println("20 Multiple choice questions ");
  
// Creating the array of type String
String [] answers = new String [20];
  
String answer;
for (int i =0; i <20;i++)
{
do
{
System.out.print((i+1)+":");
answer = kb.nextLine();
}
while (!isValidAnswer(answer));
answers[i]=answer;
}
//Process
DriveExam exam= new DriveExam(answers);
  
displayResult(exam);
  
}
private static void displayResult(DriveExam exam) {
  
//Result
System.out.println("Result:");
exam.displayUserAnswers();
// outputting Total correct
System.out.println("Total Correct:"+ exam.totalCorrect());
//outputting total incorrect
System.out.println("total incorrect:" +exam.totalInCorrect());
String passed = exam.passed()? "Yes ":" No";
// result pass or fail
System.out.println ("Passed :" +passed);
if (exam.totalInCorrect()>0)
{
System.out.println("List of Questions Missed :");
int missedIndex;
for (int i = 0; i < exam.totalInCorrect();i++)
{
missedIndex = exam.questionMissed()[i]+1;
System.out.print(" "+missedIndex);
}
}   
  
}
  
// return true when the answer is valid
public static boolean isValidAnswer(String answer)
{
return "A".equalsIgnoreCase(answer)|| "B".equalsIgnoreCase(answer)|| "C".equalsIgnoreCase(answer)||"D".equalsIgnoreCase(answer);
}
}

_________________________

Output:

Driver's Lincense Exam
20 Multiple choice questions
1:B
2:A
3:A
4:A
5:C
6:A
7:B
8:A
9:C
10:D
11:B
12:C
13:D
14:A
15:D
16:C
17:C
18:A
19:D
20:B
ResultStudent Answers :
B A A A C A B A C D B C D A D C C A D B
Total Correct:17
total incorrect:3
Passed :Yes
List of Questions Missed :
2 18 20

_______________Could you plz rate me well.Thank You