Introduction Program Requirements – General Algorithm
CSCI 1301: Introduction to Computing and Programming
Project 2: Multiple Choice Flash Cards
Summer 2015
Introduction
This project will allow you to apply your knowledge of decision statements, variables, assignments, expressions, inputs, outputs, algorithm design, compiling, testing, and debugging source code. The program can be completed using the aforementioned programming concepts with an emphasis on decision statements. Although loops are not required for you to program in this project, you may use loops or any other features of Java found in the Java 8 API. After completing this project, you’ll have your own program that will aid you in studying programming concepts.
You will write a Java application called MultipleChoiceFlashCards in a file called
MultipleChoiceFlashCards.java
. The game you’ll implement is a text-based, three round version of a multiple choice computer science flashcard game. A round of the game consists of a user being asked a multiple choice computer science question/problem, and after the user answers it, your game will decide if the answer is correct. The player starts with zero points, and gains a point for each question/problem correctly answered. At the end of the game, your program must tell the user how many points they scored out of the total possible points, and it must have consistent I/O statements as shown in the examples at the end of this project.
Furthermore, your program must use pre-generated questions from the class
MultipleChoiceFlashCardsZoeyGameEngine001 , which contains more than 100 questions .
The questions supplied to your program will be pseudorandomly returned (with four answer choices pseudorandomly shuffled) from the methods in the supplied class
MultipleChoiceFlashCardsZoeyGameEngine001 found on the labs and projects webpage in the file MultipleChoiceFlashCardsZoeyGameEngine001.jar
. You must download and use
MultipleChoiceFlashCardsZoeyGameEngine001.jar
in your Eclipse Java project. To use the
.jar (Java Archive) file, follow the instructions in the link “Adding Jar Files to Projects” on the labs and projects webpage to add it to your Eclipse Java project. Failure to use
MultipleChoiceFlashCardsZoeyGameEngine001 correctly may result in a failing grade on this project.
Program Requirements – General Algorithm
The steps below must be followed in order for full credit to be awarded. Following the instructions is a vital part to this and all programming projects. Implementation details about this algorithm are shown in the examples at the end of this document, and your program must implement these details as shown in the examples.
1.
Display the following to the user.
Welcome to CSCI 1301 Multiple Choice Flash Cards!
2.
Use the code below (after declaring all necessary String variables shown below) to retrieve the questionAndChoices, choices (A, B, C, and D), and the answer to the question from the
MultipleChoiceFlashCardsZoeyGameEngine001 . The instructions on the first page of this document must be followed in order to use
MultipleChoiceFlashCardsZoeyGameEngine001 . Also note that the method getQuestionAndChoices() can be called, at most, three times. After the third call to the method, the program will display an error message and exit the calling program. This project only requires this method to be called (at most) three times.
questionAndChoices = MultipleChoiceFlashCardsZoeyGameEngine001.
getQuestionAndChoices (); choiceA = MultipleChoiceFlashCardsZoeyGameEngine001.
getChoiceA (); choiceB = MultipleChoiceFlashCardsZoeyGameEngine001.
getChoiceB (); choiceC = MultipleChoiceFlashCardsZoeyGameEngine001.
getChoiceC (); choiceD = MultipleChoiceFlashCardsZoeyGameEngine001.
getChoiceD (); answer = MultipleChoiceFlashCardsZoeyGameEngine001.
getAnswer ();
3.
Display questionAndChoices retrieved in the previous step.
4.
Prompt the user with the following.
Enter your answer (a-‐d):
5.
Retrieve the user’s answer. You may assume the user’s answer will be inputted as a single
String that contains at least one character; however, your program must determine if the answer is valid. Strings that begin with the character ‘a’, ‘A’, ‘b’, ‘B’, ‘c’, ‘C’, ‘d’, or ‘D’ are valid answers. If the answer is valid, then go to the next step. Otherwise if the answer is invalid, display the following and exit your program.
Invalid answer.
An answer must begin with a, A, b, B, c, C, D, or d.
Game over!
6.
Determine if the user’s answer is correct or incorrect based on the first character in the user’s answer, and display the appropriate messages as shown in the examples at the end of this project.
7.
Repeat steps 2 through 6 for the second and third questions. Note: the first, second, and third questions should be different (if they are not different, then your program has a bug that needs to be fixed).
8.
Display the end of game output statements as shown in the examples at the end of this project, and note the special output messages in the table below based on the user’s final score.
User’s final score
0
1
2
3
End of game output statement
Your computer science wit needs sharpening.
Your computer science wit needs sharpening.
Your computer science wit is sharp.
Your computer science wit is as sharp as Occam's razor.
CSCI 1301: Project 2 Page 2
Also your program’s source code must contain the following class comment with the brackets filled in with this project’s information (class name, your name, and submission date). The class comment should be placed directly above the class declaration but under the program’s import statement(s).
/*
* [Class name here].java
* Author: [Your name here]
* Submission Date: [Submission date here]
*
* Purpose: A brief paragraph description of the
* program. What does it do?
*
* Statement of Academic Honesty:
*
* The following code represents my own work. I have neither
* received nor given inappropriate assistance. I have not copied
* or modified code from any source other than the course webpage
* or the course textbook. I recognize that any unauthorized
* assistance or plagiarism will be handled in accordance with
* the University of Georgia's Academic Honesty Policy and the
* policies of this course. I recognize that my work is based
* on an assignment created by the Department of Computer
* Science at the University of Georgia. Any publishing
* or posting of source code for this project is strictly
* prohibited unless you have written consent from the Department
* of Computer Science at the University of Georgia.
*/
Every Java file of every project you submit must have a comment such as this.
Project Submission
•
Submit the file MultipleChoiceFlashCards.java
and only that file via eLC.
Project Grading
All projects are graded out of a possible 100 points. Programs can be submitted up to 48 hours late, but late programs will lose 25 points on the first day late and 50 points on the second day late. Programs not submitted within 48 hours after the deadline will receive a grade of zero.
Programs that do not compile will receive a grade of zero. You must make absolutely certain your program compiles before submitting, and you must thoroughly test your program with different inputs to verify that it is working correctly. Your program must work with aforementioned .jar file; otherwise, your project may receive a failing grade. All instructions must be followed in order to receive full credit.
This project will be graded for both correctness and style:
CSCI 1301: Project 2 Page 3
Style [20pts]
•
5 points for including the class comment required for all projects.
• 5 points for helpful comments.
• 5 points for using well-named variables, conforming to Java naming conventions, and naming your submitted file correctly (spelling and case).
• 5 points for proper and consistent code indentation and readability.
Correctness [80pts]
• 80 points for correct output on various tests cases.
Examples
Your program should work correctly and follow the examples below. Each example is a separate run of a correctly working program. Please note that some long lines of output are wrapped around multiple lines in this document, and it is okay if your output displays them on a single line.
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
In Java, when two strings join or connect together to form a larger string, this is known as?
A. string methods
B. concatenation
C. empty string
D. increments
Enter your answer (a-‐d): B
Correct Answer!
Your score: 1 out of 1 point(s)
Loops that know the number of loop iterations before the loop starts are called a:
A. Semantic loop
B. Count-‐controlled loop
C. Logical loop
D. Controlled loop
Enter your answer (a-‐d): b
Correct Answer!
Your score: 2 out of 2 point(s)
If x is 0, what is the value of (!x == 0) in Java?
A. unknown since the syntax is invalid
B. 0
C. true
D. false
CSCI 1301: Project 2 Page 4
Enter your answer (a-‐d): a
Correct Answer!
Your score: 3 out of 3 point(s)
Your final score: 3 out of 3 point(s)
Your computer science wit is as sharp as Occam's razor.
Game Over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
An instance of a class is called a(n)
A. object
B. variable
C. class
D. method
Enter your answer (a-‐d): D
Incorrect Answer!
Your score: 0 out of 1 point(s)
In Java 7.0, (15 / 4) will evaluate to
A. 3.8
B. 4
C. 3
D. 3.75
Enter your answer (a-‐d): b
Incorrect Answer!
Your score: 0 out of 2 point(s)
Which loop statement will always perform at least one iteration?
A. do-‐while
B. while
C. loop
D. nested loop
Enter your answer (a-‐d): d
Incorrect Answer!
Your score: 0 out of 3 point(s)
Your final score: 0 out of 3 point(s)
Your computer science wit needs sharpening.
Game Over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
CSCI 1301: Project 2 Page 5
For lengthy input lists, a user can signal the end of repetition by entering a
A. for-‐loop
B. count control
C. sentinel value
D. null statement
Enter your answer (a-‐d): a
Incorrect Answer!
Your score: 0 out of 1 point(s)
Which of the following represent the mathematical expression 1 < 2 < 3 as a boolean expression in Java?
A. (1 > 2 || 2 > 3)
B. (1 > 2 && 2 > 3)
C. (1 < 2 < 3)
D. (1 < 2 && 2 < 3)
Enter your answer (a-‐d): DBA
Correct Answer!
Your score: 1 out of 2 point(s)
Loops that know the number of loop iterations before the loop starts are called a:
A. Count-‐controlled loop
B. Semantic loop
C. Controlled loop
D. Logical loop
Enter your answer (a-‐d): c
Incorrect Answer!
Your score: 1 out of 3 point(s)
Your final score: 1 out of 3 point(s)
Your computer science wit needs sharpening.
Game Over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
An error that is detected when your program is executing is called a(n)?
A. compiling error
B. testing error
C. operation error
D. run-‐time error
Enter your answer (a-‐d): d
CSCI 1301: Project 2 Page 6
Correct Answer!
Your score: 1 out of 1 point(s)
Variables and values that are part of an expression in Java are typically called?
A. operands
B. characters
C. operators
D. constants
Enter your answer (a-‐d): b
Incorrect Answer!
Your score: 1 out of 2 point(s)
What is a program that alternates the translation and execution of statements in a program written in a high-‐level language?
A. compiler
B. interpreter
C. RAM
D. JVM
Enter your answer (a-‐d): b
Correct Answer!
Your score: 2 out of 3 point(s)
Your final score: 2 out of 3 point(s)
Your computer science wit is sharp.
Game Over!
-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐
Welcome to CSCI 1301 Multiple Choice Flash Cards!
Which of the following signed, 8-‐bit, binary number is equal to 22
(base-‐10)?
A. 00100010
B. 10010110
C. 00001101
D. 00010110
Enter your answer (a-‐d): Delta
Correct Answer!
Your score: 1 out of 1 point(s)
What is the correct Java notation for "Not equal to"?
A. ||
B. !=
C. ?=
D. /=
CSCI 1301: Project 2 Page 7
Enter your answer (a-‐d): Beta
Correct Answer!
Your score: 2 out of 2 point(s)
== is useful for determining if two values are the same for all of the following except...
A. int
B. char
C. boolean
D. String
Enter your answer (a-‐d): D
Correct Answer!
Your score: 3 out of 3 point(s)
Your final score: 3 out of 3 point(s)
Your computer science wit is as sharp as Occam's razor.
Game Over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
Which of the following is the exit method?
A. Scanner.exit(0);
B. System.exit(0);
C. System.out(0);
D. System.terminate(0);
Enter your answer (a-‐d): System.exit(0);
Invalid answer.
An answer must begin with a, A, b, B, c, C, D, or d.
Game over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
How much memory does the primitive type double use?
A. 2 bytes
B. 1 byte
C. 8 bytes
D. 4 bytes
Enter your answer (a-‐d): a
Incorrect Answer!
Your score: 0 out of 1 point(s)
What is ordinal value of Suit.SPADES in the following enumeration?
enum Suit{HEARTS, DIAMONDS, SPADES, CLUBS}
CSCI 1301: Project 2 Page 8
A. 1
B. 4
C. 2
D. 3
Enter your answer (a-‐d): b
Incorrect Answer!
Your score: 0 out of 2 point(s)
How would a constant of type char be written?
A. Placing the character between two semi-‐colons
B. Placing the character between two single quotes
C. Placing the character between two double quotes
D. Placing the character between two colons
Enter your answer (a-‐d): -‐5
Invalid answer.
An answer must begin with a, A, b, B, c, C, D, or d.
Game over!
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Welcome to CSCI 1301 Multiple Choice Flash Cards!
Which statement is true?
A. A class is an instance of an object.
B. Auxiliary memory is usually volatile.
C. A .java file typically contains Java source code.
D. A .class file typically contains a Java program that can be executed by a CPU.
Enter your answer (a-‐d): b
Incorrect Answer!
Your score: 0 out of 1 point(s)
For lengthy input lists, a user can signal the end of repetition by entering a
A. sentinel value
B. count control
C. null statement
D. for-‐loop
Enter your answer (a-‐d): q
Invalid answer.
An answer must begin with a, A, b, B, c, C, D, or d.
Game over!
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CSCI 1301: Project 2 Page 9
