You are asked to write a Java program for the programming quiz system. There are two types of questions: Multiple Choice Question and Ture/False Question. User can create questions using the system; and preview the quiz, which display all questions in the system one by one. During the preview, the user can attempt the quiz by entering his/her answers to questions. The system will then immediately check the answer and calculate. After attempting all questions, the total score will be displayed.

You must create a class Quiz, which has the main method to run the program.

You must read/write from/to the database provided in this question (Question.accdb). This MS Access file contains a table called Questions. It contains the following fields: a. ID (Automatically generated integer by MCAccess) b. QText (Short Text): The question text c. Answer (Short Text): i. If this is a multiple-choice question, Answer stores all options separated by ##. There is a leading * for the correct option. ii. If this is a True/False question, Answer stores the string Ture or False. d. Point (Single): It is a float point number representing the point of this question. e. Type (Short Text): MC or TF denoting multiple-choice or True/False questions respectively.

Requirement: 1. The output of the program MUST EXACTLY the same as the above sample run of in character level. 2. You must create classes according to the following class diagram (Note: italic font refers to abstract methods/classes, while normal font refers to concrete methods/classes):

Question Class: - This class represents the generic form of question. It contains the question text (qText) and the point of a question (point). - The grade method, which is an abstract method, has a parameter, answer (String). It returns the points of the question if the answer is correct; zero otherwise. - The getCorrectAnswer method, which is an abstract method, has no parameter. It returns a String representing the correct answer to the question. MCQuestion Class - It is a subclass of Question. - It represents a multiple-choice question. A multiple-choice question may have 3-5 options. - Each element of the instance variable options refers to an option in this question. - The instance variable answer is a single-character string. It saves the correct answer (A, B, C, D or E) to this question.

- The method setOptions(String options) has the answer field from the database (explained below) as the parameter. It will add all options to the instance variable options and set the instance variable answer. - The constructor MCQuestion(String qText, String options, double point) creates an MCQuestion object by setting the qText, adding option to options , setting the correctAnswer to answer and point by reading the QText, Answer, and Point fields from the database. TFQuestion Class - It is a subclass of Question. - It presents a True/False question. - The constructor TFQuestion(String qText, boolean answer, double point) creates an TFQuestion object by setting the qText, answer, and point by reading the qText, Answer, and Point fields from the database.

A sample run of the program is shown as below (Green text refers to user input): Please choose (c)reate a question, (p)review or (e)xit >> c Enter the type of question (MC or TF) >> MC Enter the question text >> Each primitive type in Java has a corresponding class contained in the java.lang package. These classes are called ____ classes. How many options? 4 Enter Option A (Start with * for correct answer) >> case Enter Option B (Start with * for correct answer) >> primitive Enter Option C (Start with * for correct answer) >> *type-wrapper Enter Option D (Start with * for correct answer) >> show How many points? 3 Please choose (c)reate a question, (p)review or (e)xit >> c Enter the type of question (MC or TF) >> MC Enter the question text >> A(n) ____ variable is known only within the boundaries of the method. How many options? 5 Enter Option A (Start with * for correct answer) >> method Enter Option B (Start with * for correct answer) >> *local Enter Option C (Start with * for correct answer) >> double Enter Option D (Start with * for correct answer) >> instance Enter Option E (Start with * for correct answer) >> global How many points? 2 Please choose (c)reate a question, (p)review or (e)xit >> c Enter the type of question (MC or TF) >> TF

Enter the question text >> Java is a free-form programming language. Answer is True or False? True How many points? 1 Please choose (c)reate a question, (p)review or (e)xit >> p Each primitive type in Java has a corresponding class contained in the java.lang package. These classes are called ____ classes. (3.0 Points) A: case B: primitive C: type-wrapper D: show Enter your choice >> A You are wrong. The correct answer is C. A(n) ____ variable is known only within the boundaries of the method. (2.0 Points) A: method B: local C: double D: instance E: global Enter your choice >> B You are correct! Java is a free-form programming language. (1.0 Points) True(T) or False(F) >> F You are wrong. The correct answer is true. The quiz ends. Your score is 2.0. Please choose (c)reate a question, (p)review or (e)xit >> c Enter the type of question (MC or TF) >> MC Enter the question text >> A(n) ____ constructor is one that requires no arguments. How many options? 3 Enter Option A (Start with * for correct answer) >> class Enter Option B (Start with * for correct answer) >> *default Enter Option C (Start with * for correct answer) >> explicit How many points? 2 Please choose (c)reate a question, (p)review or (e)xit >> c Enter the type of question (MC or TF) >> TF Enter the question text >> Javascript and Java are the same. Answer is True or False? False How many points? 0.5 Please choose (c)reate a question, (p)review or (e)xit >> p Each primitive type in Java has a corresponding class contained in the java.lang package. These classes are called ____ classes. (3.0 Points) A: case B: primitive C: type-wrapper D: show Enter your choice >> C You are correct! A(n) ____ variable is known only within the boundaries of the method. (2.0 Points) A: method B: local C: double D: instance E: global Enter your choice >> B You are correct! Java is a free-form programming language. (1.0 Points) True(T) or False(F) >> T You are correct! A(n) ____ constructor is one that requires no arguments. (2.0 Points) A: class B: default C: explicit Enter your choice >> C You are wrong. The correct answer is B. Javascript and Java are the same. (0.5 Points) True(T) or False(F) >> F You are wrong. The correct answer is false. The quiz ends. Your score is 6.5. Please choose (c)reate a question, (p)review or (e)xit >> e