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Animal Class Design
Implement the Animal class as described above.
Animal Sounds Hierarchy
Design a class hierarchy for representing animals and their sounds.
Apartment Class Design
Implement the Apartment class as described above.
Appliance Efficiency Analyzer
Design an appliance efficiency analyzer using inheritance. Create an abstract Appliance class with a
ArrayStatistics Utility Class
Implement the ArrayStatistics class as described below.
ArrayUtilities Class
This question involves designing an ArrayUtilities utility class for performing operations on intege
Art Collection Organizer
This question involves organizing an art collection by the year each piece was created. You will imp
Art Exhibit
This question asks you to design an ArtExhibit class to represent an art exhibition show.
Autonomous Vacuum Cleaner
This question involves simulating an autonomous vacuum cleaner navigating a room represented as a 2D
Bank Account
This question requires you to design a BankAccount class that models a simple bank account.
Bank Account Fee Calculator
Develop a bank account fee calculator using inheritance. Create an abstract BankAccount class with a
Bank Transaction Processor
This question simulates processing transactions within a bank. The TransactionProcessor class manage
Bank Transaction Summarizer
Design a Bank Transaction Summarizer to sum deposits and filter withdrawals.
Battleship Navigation
This problem involves simulating the navigation of a battleship through an ocean grid with obstacles
Beverage Preparation Hierarchy
Design a class hierarchy for beverage preparation.
Bike Sharing System
This question simulates a bike-sharing system. The BikeShare class maintains a HashMap to track the
Blueprint Analyzer
Develop methods in the BlueprintAnalyzer class to rotate a blueprint 90 degrees and to check if it i
Book Catalog Manager
Design a Book Catalog Manager to search for books by author and compute the average publication year
Book Collection Manager
This question involves designing a BookCollection class for managing a collection of books, includin
Book Collection Organizer
This question involves managing a book collection using an ArrayList. You will implement methods to
Building Evacuation Plan
This question involves developing an evacuation plan for a building modeled as a 2D grid. You will i
Bus Route Scheduler
This question simulates managing a bus route schedule. You will implement methods to search for a bu
Calendar Event Conflict Resolver
This question involves developing methods for a CalendarScheduler class that manages event schedulin
Campus Map Building Finder
The CampusMap class represents a campus using a 2D char array where each character represents a buil
Campus Map Path Finder
This question involves analyzing a campus map represented as a 2D array. Implement methods in the Ca
Campus Navigation Helper
This question involves finding the shortest route on a campus map represented as a 2D grid. You will
Chat Message Thread Organizer
This question involves processing chat messages recorded in a forum thread. You will implement metho
Chess Board Analyzer
This EXTREME question involves analyzing a chess board represented as a 2D array. Implement methods
ChessKnight Moves
This question involves calculating all possible moves for a knight on a chessboard from a given posi
CipherUtility Utility Class
Implement the CipherUtility class as described below.
City Metro Routing
This question involves developing methods for a MetroRouter class that assists in finding optimal tr
City Traffic Congestion
Develop a City Traffic Congestion analyzer to filter intersections with high delays and compute the
CoffeeOrder Class Design
Implement the CoffeeOrder class as described above.
ComplexNumberOperations Utility Class
Implement the ComplexNumberOperations class as described below.
Concert Ticket
This question asks you to design a ConcertTicket class to represent tickets for a concert event.
Conference Attendee Finder
Design search methods to locate conference attendees by their badge numbers using linear and binary
Container Shipping Scheduler
This question simulates scheduling container shipments in a logistics system. The ShippingScheduler
Contest Ranking System
Implement the sortScoresDescending and findTopTwoScores methods in the ContestRanker class.
Course Enrollment Hierarchy
Design a class hierarchy for course enrollments.
Course Enrollment Sorter
Develop methods to sort courses by enrollment numbers using selection sort and merge sort.
CreditCardFormatter Utility Class
Implement the CreditCardFormatter class as described below.
Cuisine Dish Preparation Hierarchy
Design a class hierarchy for cuisine dish preparation.
Data Compression Implementation
This question involves implementing simple data compression and decompression methods using run-leng
Data Encryption Simulator
This question simulates a simple data encryption system using a Caesar cipher. You will implement me
DataEncryption Utility Class
Implement the DataEncryption class as described below.
DataFormatter Utility Class
Implement the DataFormatter class as described below.
Digital Image Edge Detector
Implement a method to detect an edge in a digital image represented as a 2D array of pixel brightnes
Digital Library Borrowing Data
This FRQ involves analyzing borrowing data from a digital library. You will implement methods to sor
Digital Mosaic Generator
Develop methods in the DigitalMosaicGenerator class to create a mosaic effect by computing block ave
Digital Photo Editor
Implement a brightness adjustment method in the DigitalPhotoEditor class to uniformly increase the b
Digital Poster Editor
Enhance the digital poster editing experience by implementing brightness adjustment and horizontal m
DigitalArt: Invert Colors
This question involves designing the DigitalArt class to invert the colors of a grayscale image. Imp
Drone Delivery Navigation
This question simulates route planning for drone delivery. You will implement methods to compute the
Dynamic Array Manipulation
This question involves writing a method to remove duplicates from an array of integers while preserv
Dynamic Temperature Monitor
This question involves developing methods for a TemperatureMonitor class to manage and analyze tempe
E-commerce Order Management
Develop an e-commerce order management system using inheritance. Create an abstract Order class with
E-commerce Order Tracker
Manage e-commerce orders by identifying high-value orders and applying discounts to applicable order
E-commerce Review Sorter
Implement methods to sort product reviews by rating and search for a review with a specific rating.
E-commerce Transaction Validator
This question revolves around the validation of e-commerce transactions using credit card verificati
E-Mail Filter
Filter an ArrayList of email messages to remove those containing the keyword 'spam'.
ECommerceOrderTracker
Design an ECommerceOrderTracker class that manages orders and tracks their statuses.
Educational Institution Application
Design an educational institution application system using inheritance. Create an abstract Instituti
Election Ballot Organizer
This question involves organizing election ballots by sorting them with two different algorithms. Yo
Election Results Processor
This question involves implementing an ElectionResults class to tally votes and determine the winnin
Elevator Simulation
This question simulates an elevator system. The ElevatorSystem class tracks the current floor of an
Email Management System
This question involves sorting emails by date and searching for an email by its subject. You will im
Employee Class Design
Implement the Employee class as described above.
Employee Payroll
This question asks you to design an Employee class to manage payroll information.
Employee Record Finder
Sort employee records by salary and implement a binary search method to locate an employee by salary
Employee Salary System
Design an employee salary system using inheritance. Create an abstract Employee class with an abstra
Employee Schedules Organizer
Implement the sortShifts and searchShift methods in the EmployeeSchedule class.
EncryptionHelper Class
This question involves designing an EncryptionHelper utility class that performs simple Caesar ciphe
Energy Consumption Tracker
Design an Energy Consumption Tracker to filter erroneous readings and compute peak consumption.
Environmental Pollution Monitor
This question involves developing a PollutionMonitor class that analyzes environmental pollution dat
Environmental Sensor Data Analyzer
Implement the sortReadings and findFirstOutlier methods in the SensorDataAnalyzer class.
Event Scheduling System
This question involves creating an EventScheduler class that manages event times stored in a sorted
Event Seating Analyzer
Implement a method to count horizontal contiguous sequences of empty seats in an event seating chart
Event Timer and Alarm
This question involves managing alarm times in a sorted ArrayList. You will implement a method to in
EventTicketing
Design an EventTicketing class that manages events and tracks ticket sales.
Exam Grader Automation
This question involves designing an ExamGrader class to automatically grade multiple choice exams ba
ExpressionEvaluator Class
This question involves designing an ExpressionEvaluator utility class to evaluate arithmetic express
Farm Field Irrigation
This question involves managing a farm field's moisture levels represented as a 2D array. Implement
FilmFrame: Time Lapse Overlap
This question involves designing the FilmFrame class to combine two film frames represented by 2D ar
Financial Stock Analyzer
This question simulates analysis of stock price data. The StockAnalyzer class processes an array of
Flight Booking System
Implement the sortBookingsByDeparture and searchBookingByFlightNumber methods in the FlightBookingSy
Flight Class Design
Implement the Flight class as described above.
Flight Status Tracker
This question involves designing a FlightStatusTracker class to monitor and report the status of var
Fuel Consumption Tracker
Analyze fuel consumption readings by removing outlier values and computing the average consumption.
Game of Life Pattern Detector
This question requires scanning a 2D array representing a Game of Life board to count the live neigh
Game Score Tracker
This question involves implementing a ScoreTracker class to update game scores and retrieve the high
Garden Layout Planner
This question involves planning a garden layout represented as a 2D grid and evaluating sprinkler co
Garden Plant Height Analysis
The GardenAnalyzer class manages a 2D array representing the heights of plants in a garden. Implemen
Gardening Tool Hierarchy
Design a class hierarchy for gardening tools.
GeometryHelper Utility Class
Implement the GeometryHelper class as described below.
GeometryUtil Class
This question involves designing a GeometryUtil utility class that calculates areas of common geomet
GPS Navigation Assistant
This question simulates a GPS navigation assistant. The NavigationSystem class computes distances be
Gym Membership Tracker
This question involves implementing a MembershipTracker class to update member statuses and generate
HeatMap: Smoothing and Normalization
This question involves designing the HeatMap class to process a 2D array of temperature readings. Im
Hospital Floor Navigator
This question involves navigating the complex layout of a hospital floor represented as a 2D grid. Y
Hospital Patient Management
Implement the sortPatientsByName and searchPatientByName methods in the PatientManager class.
Hospital Patient Wait Times
Develop a Hospital Patient Wait Times analyzer to filter critical waits and compute the average wait
House Listing
This question asks you to design a House class to model real estate listings.
Ice Cream Flavor Finder
This question involves analyzing an ice cream parlor’s flavor distribution grid. Implement methods t
Image Filter Application
In this question, you will work with a grayscale image represented as a 2D array of pixel values. Im
Image Flipper
Develop methods in the ImageEditor class to flip an image horizontally and vertically.
Image Rotator
Develop methods in the ImageEditor class to rotate an image by 90 degrees and 180 degrees.
Image Smoothing Filter
Enhance the ImageEditor class by developing a smoothing filter that reduces noise in an image throug
ImageTransformer: Combined Horizontal Flip and 90-Degree Rotation
This multi-part question involves designing an ImageTransformer class that performs multiple transfo
Inventory Management System
This question involves developing methods for an InventoryManager class to manage a retail store's i
Inventory Management System
Implement the sortItemsByID and searchItemByID methods in the InventoryManager class.
Inventory Management System
This question involves creating an inventory management system that uses ArrayLists to maintain a dy
Inventory Manager
This question involves designing an InventoryManager class for managing stock levels in a retail set
Inventory Manager
This question simulates inventory management in a warehouse. The Inventory class tracks items and th
Lawn Mower Simulator
This problem simulates a lawn mower navigating a garden grid that includes obstacles such as flower
Leaderboard Manager
Design a Leaderboard class that dynamically manages player scores and rankings.
Library Book Finder
This question simulates a library system that retrieves books by their ISBN. You will complete the f
Library Book Management
This FRQ focuses on managing a collection of library books. You will implement methods to sort books
Library Book Search
This question focuses on designing a Library class that stores Book objects. You will implement a me
Library Catalog
This question involves designing a LibraryCatalog class to manage a collection of books in a library
Library Loan Duration Analyzer
Create a Library Loan Duration Analyzer to remove overdue loans and compute the average loan duratio
Library Locator
Implement a method to locate the nearest library in a 2D city map grid.
Library Management System
This question simulates a library catalog management system. The LibraryCatalog class uses parallel
Library Shelf Arrangement
The LibraryShelves class manages book placements on shelves using a 2D String array, where non-empty
LibrarySystem
Design a LibrarySystem class that manages book inventory and tracks book lending.
LogFormatter Class
This question involves designing a LogFormatter utility class for formatting and extracting informat
Logistics Delivery Routing
This question involves optimizing logistics delivery routes. You will implement methods to sort deli
MathUtilities Utility Class
Implement the MathUtilities class as described below.
Matrix Sum Calculator
This question involves writing methods to compute the sums of each row and column in a given matrix.
Maze Navigator
Implement a method to determine if a path exists through a maze represented as a 2D grid of open ('0
Maze Navigator
The MazeNavigator class manages a maze represented as a 2D char array, where '#' represents a wall a
MedicalImage: Contrast Enhancement
This question involves designing the MedicalImage class to perform contrast enhancement on a graysca
Meteorological Observation Grid
This question involves processing a 2D grid of temperature observations. You will implement a method
Meteorological Storm Cell Detector
This question requires scanning a 2D array of radar data to identify storm cells based on intensity
Mining Sensor Data Processor
This question involves designing a SensorData class that processes quantitative readings from mining
Mobile App Notification System
Design a mobile app notification system using inheritance. Create an abstract Notification class wit
Mobile Phone
This question asks you to design a MobilePhone class to model a smartphone.
MosaicMaker: Pixelation Effect
This question involves designing the MosaicMaker class to create a pixelated version of an image. Im
Movie Class Design
Implement the Movie class as described above.
Movie Database Search
This question involves searching for movies by rating in a movie database. You will implement the se
Movie Ratings Analyzer
Compute the average rating from an ArrayList of movie ratings.
Movie Theater Seat Reservation
This question examines seating arrangements in a movie theater using a 2D array. Implement methods i
Museum Security Patrol
This problem simulates a museum guard’s patrol through a grid representing a museum layout.
Music Playlist Manager
This question involves designing a MusicPlaylistManager class to organize and manage a playlist of s
MusicPlaylist
Design a MusicPlaylist class that manages a playlist of songs with basic playback controls.
OceanSimulator: Wave Distortion
This question involves designing the OceanSimulator class to simulate wave distortions on a water su
Office Layout Navigation
This problem simulates an employee navigating through an office layout grid to find the exit.
Online Course Feedback Analyzer
Implement the sortFeedbackScores and searchFeedbackScore methods in the FeedbackAnalyzer class.
Online Quiz System
This question involves implementing a QuizManager class to manage quiz questions, add new questions,
Online Review Analyzer
Design an Online Review Analyzer to filter positive reviews and compute the average rating.
Online Store Feedback Analyzer
Develop an Online Store Feedback Analyzer to filter valid feedback and compute the median rating.
PacMan Maze Simulation
This question involves simulating a PacMan maze where both PacMan and ghosts move through a 2D grid.
Parking Lot Manager
This question simulates a parking lot management system. The ParkingLot class manages a grid of park
Parking Lot Occupancy Detector
This question requires scanning a 2D array representing a parking lot to count empty parking spaces.
PasswordGenerator Class
This question involves designing a PasswordGenerator utility class that generates random passwords m
PasswordGenerator Utility Class
Implement the PasswordGenerator class as described below.
PixelArt: Color Quantization
This question involves designing the PixelArt class to perform color quantization on an image. Imple
Planet Surface Rover Simulator
This question involves simulating a rover navigating the surface of a planet represented as a 2D gri
PolynomialEvaluator Utility Class
Implement the PolynomialEvaluator class as described below.
PolynomialUtils Class
This question involves designing a PolynomialUtils utility class to evaluate polynomials using stati
Product Inventory System
This FRQ simulates a product inventory system. You will implement methods to sort an ArrayList of pr
Product Price Sorter
Design and implement two sorting methods to order a list of products by price.
Product Pricing Sorter
This question involves sorting product objects by price using two distinct sorting algorithms: selec
Production Quality Control
Assess production quality by counting defective items and identifying their indices.
Public Transit Scheduler
This question involves creating a TransitScheduler class to determine bus arrival times and update b
Public Transportation Scheduler
This question requires you to write methods to compute bus wait times for public transportation. You
Recipe Ingredient Calculator
This question simulates scaling recipe ingredients for different serving sizes. The RecipeCalculator
Reservation System
This question involves designing a ReservationSystem class to manage seat reservations for a venue.
Restaurant Menu Sorter
This question involves sorting a restaurant menu by price. You will implement the sortMenuByPrice me
Restaurant Order Processing
This FRQ entails managing restaurant orders represented as monetary amounts. You will implement meth
Restaurant Order Scheduler
Implement methods to sort restaurant orders by order time and search for an order by its ID.
Retail Inventory Empty Shelf Detector
Implement a method to check which rows in a retail inventory grid are completely empty.
Retail Inventory Manager
Implement methods to manage retail inventory by sorting items by stock quantity and searching for an
Retail Product Pricing
Design a retail product pricing system using inheritance. Create an abstract Product class with an a
Retail Sales Analyzer
Develop a Retail Sales Analyzer to filter low sales and compute sales statistics.
Robot Vacuum Floor Scanner
This question requires scanning a 2D array representing a home floor plan to simulate a robot vacuum
Room Temperature Monitor
This question involves analyzing room temperature data stored in a 2D array. Implement methods in th
Satellite Image Analyzer
Enhance the analysis of satellite imagery by implementing methods to flip an image horizontally and
Sea Temperature Analyzer
This question requires scanning a 2D float array representing sea surface temperatures to locate a h
Sensor Data Filter
Filter sensor readings by removing values below a specified threshold.
Sensor Data Noise Filter
This question involves developing methods for a SensorFilter class to remove noise from sensor data.
Sensor Data Processor
This question involves designing a SensorDataProcessor class to handle and analyze data from multipl
Sewer System Map Mapper
This question involves mapping an underground sewer system represented as a 2D grid. You will implem
Shape Area Calculator
Develop a shape hierarchy using inheritance. Create an abstract Shape class with an abstract method
Smart Device Hierarchy
Design a class hierarchy for smart devices.
Smart Home Energy Monitor
This question involves designing an EnergyMonitor class that processes smart home energy usage data
Smart Home Sensor Data Manager
This question involves managing sensor data in a smart home system. You will implement methods to so
Smartphone Class Design
Implement the Smartphone class as described above.
Soccer League Ranking
This question involves managing a soccer league. You will implement methods for the SoccerLeague cla
Social Distancing Layout Checker
Implement a method to count pairs of people seated too close in a 2D seating grid.
Social Media Analytics
This FRQ centers on social media post analytics. You will implement methods to sort post 'like' coun
Social Media Engagement Tracker
Develop a Social Media Engagement Tracker to filter trending posts and compute the median number of
Social Media Feed Analyzer
This question involves developing a SocialMediaFeedAnalyzer class that processes an array of like co
Social Media Friend Finder
Implement the sortFriendsAlphabetically and searchFriend methods in the FriendFinder class.
Social Media Friend Search
Design search methods to find user profiles by username using linear and binary search.
Social Media Post
This question asks you to design a SocialMediaPost class to represent posts on a social media platfo
Social Media Post Analyzer
Determine the index of the most liked social media post from an array of like counts.
Social Media Post Scheduler
This question involves scheduling social media posts. You will implement methods for scheduling indi
Social Media Post Scheduler
This question involves designing a PostScheduler class to manage the scheduling of social media post
Social Media Post Sorter
This question involves managing social media posts by sorting them based on the number of likes. You
Social Network Analyzer
This question involves designing a SocialNetworkAnalyzer class to analyze friendship networks and su
SocialNetwork
Design a SocialNetwork class that manages user registrations and friend relationships.
Sports Statistics Tracker
This FRQ involves tracking sports statistics for a player. You will implement methods to sort game p
Sports Team Player Evaluation
Develop a sports team player evaluation system using inheritance. Create an abstract Player class wi
Sports Team Stats
Update player statistics by adjusting scores and identifying the highest scorer.
Sports Tournament Scheduler
Design a Sports Tournament Scheduler to update team points and determine the top team.
Sports Tournament Scoreboard
The Scoreboard class tracks game scores in a sports tournament using a 2D array, where each row repr
SportsTeam Class Design
Implement the SportsTeam class as described above.
Spreadsheet Data Analyzer
This question analyzes a 2D array representing spreadsheet data. The SpreadsheetAnalyzer class store
StatisticsHelper Class
This question involves designing a StatisticsHelper utility class to compute basic statistical metri
Stock Market Analyzer
This question involves designing a MarketAnalyzer class that processes daily stock prices and uses s
Stock Market Trend Analyzer
This question involves analyzing stock price data using advanced array manipulation techniques. You
Student Class Design
Implement the Student class as described above.
Student Grade Analyzer
This question involves designing a StudentGradeAnalyzer class to process student scores. You will im
Student Grades Analyzer
Analyze student grades using an ArrayList by computing the average and filtering failing grades.
Student Record
This question asks you to design a Student class to record student information.
Submarine Sonar Anomaly Detector
Implement a method to detect a linear anomaly pattern in submarine sonar data represented as a 2D gr
Survey Data Processor
Analyze survey responses by computing frequency distribution and determining the most common respons
TemperatureConverter Utility Class
Implement the TemperatureConverter class as described below.
Terrain Elevation Map
This question involves analyzing a terrain elevation map stored as a 2D array. Implement methods in
TextStatistics Class
This question involves designing a TextStatistics utility class that analyzes text data using static
TimeConversion Class
This question involves designing a TimeConversion utility class that converts between seconds and HH
TimeConverter Utility Class
Implement the TimeConverter class as described below.
Traffic Congestion Zone Detector
This question requires scanning a 2D array representing traffic densities to count contiguous zones
Traffic Data Processor
Process hourly vehicle counts by identifying the peak hour and calculating the average count.
Traffic Grid Simulator
This problem involves developing a simulation for vehicle movement within a city traffic grid.
Traffic Light Simulator
Adjust traffic light timings by adding bonus seconds to those below a given threshold.
Traffic Signal Controller
This question simulates a traffic signal controller. The TrafficSignal class cycles through signal s
Traffic Simulator
This question involves designing a TrafficSimulator class to model and simulate traffic flow on a gr
Traffic Violation Record Search
Implement the sortRecordsByLicensePlate and searchRecordByLicensePlate methods in the ViolationRecor
TrafficMap: Route Highlighter
This question involves designing the TrafficMap class to highlight a route on a city grid represente
TrafficMonitor
Design a TrafficMonitor class that tracks vehicle counts on various roads and identifies peak traffi
TrainTicket Class Design
Implement the TrainTicket class as described above.
Travel Itinerary Planner
This question involves developing methods for an ItineraryPlanner class that organizes travel destin
Travel Time Estimator
Develop a Travel Time Estimator to filter outlier travel times and compute the median travel time.
Underwater Drone Explorer
This question involves simulating an underwater drone exploring a 2D grid representing the ocean flo
UnitConverter Utility Class
Implement the UnitConverter class as described below.
Urban Building Cluster Analyzer
This question requires scanning a 2D array representing a city map to count clusters of a specified
Vehicle Hierarchy
Design a class hierarchy for vehicles.
VehicleTracker
Design a VehicleTracker class that maintains and updates vehicle locations for logistics.
Virtual Garden Layout Analyzer
Implement a method to count the number of contiguous plant regions in a garden layout grid.
Virtual Zoo Habitat Enclosure
This question involves analyzing animal species within a virtual zoo's habitat, represented as a 2D
Warehouse Path Planning
This problem involves planning and verifying a route for a warehouse robot navigating through a grid
Weather Data Analysis
This question involves analyzing weather temperature data using sliding window techniques. You will
Weather Data Analyzer
This question involves analyzing weather data represented as a 2D array of temperature readings. You
Weather Data Analyzer
This question simulates analyzing daily weather data. The WeatherAnalyzer class processes an array o
Weather Data Analyzer
Analyze temperature readings by filtering out extreme values and computing the average of the valid
Weather Data Analyzer
Implement the sortTemperatures and getTemperatureRange methods in the WeatherDataAnalyzer class.
Weather Data Analyzer
This question involves analyzing weather temperature data. You are to implement methods to compute t
Weather Data Processing
This question involves implementing a WeatherAnalyzer class to process daily temperature readings an
WeatherData Analyzer
This question involves designing a WeatherDataAnalyzer class to manage daily weather measurements an
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