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Q1:B. - Lawn Mower Class Scenario: You're working a summer job to raise money for school by cutting people's grass. You want to write a program to figure out how much to charge people, then report on the money earned. You need a class that stores the customer name, the length of the yard in feet, and the width of the yard in feet.See Answer
Q2:System 1: Pizza HouseA new home delivery-focused pizzeria opens up in the neighborhood. At first, the demand is low,but the pizza's quality is excellent, as well as the delivery times. After a while, the pizzeria getsnoticed and is featured in a local online food blog. As a result, the demand for pizzarises sharply.But the pizzeria owners are reluctant to purchase more delivery capacity (pizza delivery vehiclesand personnel) along with higher pizza production capacity (additional pizza ovens). That resultsin higher delivery times and a larger percentage of undercooked pizzas, in turn lowering the numberof returning customers. As a result, the pressure for additional investment in both delivery andproduction capacity is eliminated. The pizzeria owners are happy that they held off on the additionalinvestment.For the system above, please include the following in your submission:Problem 1. System Boundaries Diagram and Table (30 pts)A. Internal Processes and Componentsa. List any entities/subsystems/internal processesincluded in the system (e.g. ordering, baking, etc.).Include at least 4 (you can include the examples).These need to be included in the table below (notrequired for the system boundaries diagram, but willbe helpful for creating the flowchart).b. List what resources/components are used by theseprocesses (eg delivery vehicles, ovens, etc.). Includeat least 4 (you can include the examples). These needto be included in the table below and as internalcomponents in your system boundaries diagramSee Answer
Q3:Task 1: En tites! 1. Customer 2. Flight 3. Reservation 4. Payment weak Entity Seat Relationships: 1. Customer books a reservation for flight 2. Reservation is made for a specific Seat onflight 3. Payment is made for areservation 4. Flight multiple reservations Composite attributes: Address attribute for Customer entity Multivalued attributes: Amenities attribute for Flight entity Generalization and Specialization! Reservation entity can be generalized into Economy Reservation and Business Reservation, and Seat entity is a weak entity that belonge to the Reservation entity.See Answer
Q4: 1. Objectives On completion of this assignment a student should be able to write a Java application that: • Makes use of selection and repetition constructs to achieve desired outcomes • Stores data to and reads data from ArrayList • Generates output to and reads input from the console window • Know how to use various standard Java classes (e.g. String class) • Handles basic errors and exceptions • Know how to apply and design a program using object-oriented concepts 2. Background HighSum is a community card game that can be played with 2 to 10 players. One of the players will be the dealer. In this assignment, there is only 1 dealer, that is the Java program, and a single human player. Since the dealer is "a type" of player, references to "player" may be to the dealer or the single human player. Values of Cards The game uses one or more decks of the standard playing cards. The suits are ranked as below • spades (highest). • hearts, clubs, diamonds (lowest) The cards are valued as follows: Cards from 1 (Ace) through 9 are valued at their face value. • The 10, Jack, Queen, and King are all valued at 10. The value on a player hand is the sum of the point counts of each card in the hand. For example, a hand containing (4,6,9) has the value of 19. University of Wollongong, 20 Game Procedure Game Start The game starts with the dealer shuffles the deck of cards. The dealer will deal (distribute) the cards to the players. The dealer make two passes so that the players and the dealer have two cards each. Two passes means that the dealer must distribute the cards in such a way that, the first card belongs to the player, the second card belongs to the dealer, the third card belongs to the player and the fourth card belows to the dealer. Round 1 The first card of the dealer and player are both hidden, that is face down. The dealer and player can view their own hidden first card. The second card is visible to both the dealer and player. Copyright SCIT 23 Page 1 The player with the highest second visible card will make a "call" by stating the amount to bet. The other player will need to place the same amount of bet. Both the bet amount from dealer and player will be placed on the table. The dealer is not allowed to quit the game. Round 2 The dealer make one pass. Dealer and player each have 3 cards now. The player with the highest third visible card will make a "call" by stating the amount to bet. The other player will need to place the same amount of bet or choose to quit the current game. Dearler is not allowed to quit the game. If the human player choose to quit at this round, all the chips on the table belongs to the dealer and the current game ends here. Both the bet amount from dealer and player will be placed on the table. The dealer is not allowed to quit the game. Round 3 Similar to round 2. Round 4 Similar to round 2 plus the following rule: Each player compares the values of cards hold by other players at the end of each game to determine the winner. The player with the highest accumulate values win the game. The winner gets all the bet on the table. Next Game All the cards on the table are shuffled and placed at the end of the deck. The game will start again unless the player choose to leave the game. Please note that the above game description is a simplified version of the real game and there are also many different versions in different countries. The specifications given in this document are more than sufficient for you to complete this assignment. If you have doubts on the game logic, please feel free to clarify with your tutor. Do take note that the emphasis of this assignment is to implement the game logic using Object-oriented programming. 3. Task Develop a Java program for the HighSum game described above. Game Play Module The game starts by the player logging into the game. (The texts in bold are data input by the player) HighSum GAME Enter Login name> IcePeak Enter Password > password Copyright SCIT, University of Wollongong, 2023 Page 2 Upon logging in, the player will enter the game. (Below is a sample output of one game play) HighSum GAME IcePeak, You have 100 chips Game starts Dealer shuffles deck. Dealer dealing cards ROUND 1 Dealer <HIDDEN CARD> <Club 6> IcePeak <Diamond Ace> <Spade 6> Value: 7 Player call, state bet: 10 IcePeak, You are left with 90 chips Bet on table : 20 Dealer dealing cards ROUND 2 Dealer <HIDDEN CARD> <Club 6> <Diamond 9> IcePeak <Diamond Ace> <Spade 6> <Heart 7> Value:14 Dealer call, state bet: 10 Do you want to follow? [Y/N]: Y IcePeak, You are left with 80 chips Bet on table : 40 Dealer dealing cards ROUND 3 Dealer <HIDDEN CARD> <Club 6> <Diamond 9> <Heart Ace> IcePeak <Diamond Ace> <Spade 6> <Heart 7> <Spade 9> Value:23 Page 3 Copyright SCIT, University of Wollongong, 2023 Do you want to [C] all or [Q] uit?: C Player call, state bet: 10 You are left with 70 chips. Bet on table : 60 Dealer dealing cards ROUND 4 Dealer <HIDDEN CARD> <Club 6> <Diamond 9> <Heart Ace> <Spade 2> IcePeak <Diamond Ace> <Spade 6> <Heart 7> <Spade 9> <Heart King> Value : 33 Do you want to [C] all or [Q] uit?: C Player call, state bet: 10 You are left with 60 chips Bet on table : 80 Game End Dealer reveal hidden cards Dealer <Spade Ace> <Club 6> <Diamond 9> <Heart Ace> <Spade 2> Value : 19 IcePeak <Diamond Ace> <Spade 6> <Heart 7> <Spade 9> <Heart King> Value : 33 IcePeak Wins IcePeak, You have 140 chips Dealer shuffles used cards and place behind the deck. Next Game? (Y/N) > Y And the game continues until the player exits the game. Error Handling Your program should be able to handle error situations like where a player enter wrong password or has insufficient chips. You should look out for other possible exceptions and handle them too. Game Data All required data (e.g. player login name, passwords and chips) maybe hardcoded. 4. Submission Page 4 Copyright SCIT, University of Wollongong, 2023 A complete submission requires the following items: a. Report b. Java codes Compress the above into a zip file and upload to Moodle. (DO NOT embed the zip file into the report word document) Report The report to be submitted consists of the following sections: 1. Classes design: Draw all the Class diagram (UML standards) with the class name, attributes and methods clearly stated. 2. Test-run of Program: You have to provide screen outputs (similar to those shown in Section 3 Task Game Play Module) to show the correct execution of your program according to the requirements stated. The required test runs are: Login, Dealer wins, Player wins, Player quit and Tie. 3. Error Handling: List down the errors and exceptions that your program can handle. Provide screen captures here. (There should be at least 4 error cases. Work out those error cases yourself.) 4. Any Other Comments: State any other comments here, including any points to take note of if the tutor is to test run the program. Page 5 Copyright SCIT, University of Wollongong, 2023See Answer
Q5: Assignment 3: Snakey Snake Must work in pairs of 2. Don't use ChatGPT or Al. Use it for looking up documentation; don't use it to code for you. I say this not because it hurts me, but because it'll hurt you as a developer. Job market is exceedingly difficult, so work hard so you can stand out. Topics we will cover: Git Polymorphism Interfaces The Snake Game can be found here: https://github.com/Packt Publishing/Learning-Java-by-Building-Android-Games-Second-Edition Download and compile Chapter 17. Objective: Meet the requirements for the assignment (Git, Polymorphism, Interfaces) Add a pause button to the game; clicking on it again resumes the game о Look in Pakt book for help Change the look of the game " Change the font and game background to something unique - Add your names to the top right corner of the app Requirement 1: Git Demonstrate your knowledge of Git by hosting your project on a Git repository and utilizing version control throughout the entire project. Ensure to include a printed log of your Git commits in your report. You and your teammate must use the same GitHub Repository. Requirement 2: Polymorphism and Interfaces Apply the fundamental concepts of polymorphism and interfaces learned in class to elevate the structure of your Snake game. This part focuses on practical implementation of polymorphism and interfaces. Polymorphism: • • • Static Polymorphism: O Use method overloading for relevant actions in your Snake game, whether it's for a constructor or actions your game object can perform. (e.g., snake movement, apple spawning, collision interaction). Dynamic Polymorphism: ○ Create a base class or interface representing a game object (e.g., ○ GameObject). Implement derived classes (e.g., Snake, Apple) that use method overriding. O Show how dynamic polymorphism gives more flexibility when managing game objects. Think of how you can represent the objects in polymorphic ways. O Maybe creating a parent class for all the game objects that contain common methods? O Maybe creating polymorphic methods in your class to allow for different functionality based on the input parameters. Interfaces: • • • Interface Hierarchy: ○ Identify key functionalities in your Snake game (e.g., movable, drawable) and create corresponding interfaces. ○ Implement these interfaces in relevant game components. Abstract Classes vs Interfaces: ○ Choose specific functionalities to be represented by abstract classes and others by interfaces. Justify your choices based on the advantages of abstract classes and interfaces in different situations. Multiple Inheritance via Interfaces: о Explore scenarios in your Snake game where multiple inheritance can be achieved using interfaces. о Implement and explain how this enhances the modularity and extensibility of your code. Submission Details: Write a one to two page report discussing the changes that you made and why you made those changes. Include as much detail as possible, however, do not just write filler, your assignment will be graded on quality, more so than quantity. If you are struggling to write a full page of high quality description, you might want to revisit the lectures. Consider the following points in your report: 1. OOP Implementation: Briefly outline the integration of OOP concepts (Classes & Objects, Abstraction, Encapsulation, Interfaces, Polymorphism) in the Snake game. 2. Code Smells Identification: Articulate specific issues associated with each code smell and their impact on code quality. 3. Refactoring Choices and Techniques: 。 Explain the rationale behind refactoring choices to address identified code smells. 4. Integration of OOP Concepts with Refactoring: о Briefly describe how OOP concepts from Part 1 seamlessly enhance the refactoring process in Part 2. ○ Highlight how these concepts contribute to improved code maintainability and readability. 5. Git Integration: о Explain how using Git and version control enhanced your development process. о Discuss how you used Git as a pair of developers. 6. Challenges and Solutions: о Summarize challenges faced during implementation and refactoring. O Provide succinct insights into the strategies used to overcome these challenges. Also: - A zip file containing your entire Android Studio Project - Provide a screenshot of the Snake game running in the emulator to demonstrate successful implementation. - SUBMIT YOUR REPORT AS A PDF FILE WITH YOUR NAMESSee Answer
Q6: Discuss the concepts of classes, objects, encapsulation and inheritance relating to object- oriented programming paradigm and apply them to solve a real-world problem. Analyse mathematical, scientific and other types of problems and design logical solutions for each, suitable for implementing as a computer program. Use an object-oriented programming language, and associated class libraries, to develop object-oriented programs. Use a development environment to develop, test, and debug programs that solve a given problem. Design and develop a test plan to ensure that a given programming solution works as anticipated in both expected and unexpected scenarios. Construct appropriate diagrams and textual descriptions to communicate the static structure and the dynamic behaviour of any object-oriented programming solution.See Answer
Q7:B. - Lawn Mower Class Scenario: You're working a summer job to raise money for school by cutting people's grass. You want to write a program to figure out how much to charge people, then report on the money earned. You need a class that stores the customer name, the length of the yard in feet, and the width of the yard in feet.See Answer
Q8:In Matlab what is a callable unit called? Function Subroutine Sub-program Procedure Control StatementSee Answer

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