64 lines
1.9 KiB
Java
64 lines
1.9 KiB
Java
import java.util.ArrayList;
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/**
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* The DriverExam class holds the correct answers for the drivers test
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* and handles logic for calculating if the user passed, and displays incorrect answers
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*/
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public class DriverExam {
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/** Array of correct exam answers. IStatic because it does not change or depends on which
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* user is taking the exam
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**/
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private final static char[] correctAnswers =
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{'B','D','A','A','C','A','B','A','C','D','B','C','D','A','D','C','C','B','D','A'};
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/** Array of user's answers **/
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private final char[] givenAnswers;
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/** Count of correct user answers **/
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private int totalCorrect;
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/** Corresponds to each question, each true if correct answer **/
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private boolean[] missedQuestions;
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/**
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* Compares givenAnswers to correctAnswers, counting amount correct
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* Also updates missedQuestions with incorrect answers
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* @return If user passed exam
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*/
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public boolean passed() {
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int correct = 0;
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for(int i = 0; i < givenAnswers.length; i++) {
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if(givenAnswers[i] == correctAnswers[i]) {
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correct++;
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}
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else{
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missedQuestions[i] = true;
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}
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}
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totalCorrect = correct;
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return correct >= 15;
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}
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public DriverExam(char[] givenAnswers) {
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this.givenAnswers = givenAnswers;
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missedQuestions = new boolean[20];
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}
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// Getter methods
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public int totalCorrect() {
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return totalCorrect;
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}
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public int totalIncorrect() {
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return 20 - totalCorrect;
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}
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public ArrayList<Integer> questionsMissed() {
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ArrayList<Integer> missedNums = new ArrayList<>();
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for(int i = 0; i < missedQuestions.length; i++) {
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if(missedQuestions[i]) {
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missedNums.add(i + 1);
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}
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}
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return missedNums;
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}
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}
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