CodeHS Unit 4 Rectangle Class

Rectangle Class

• Rectangle Class Implementation: Contains attributes for width and height, methods for area and dimensions, and overrides toString() for a descriptive output.
• RectangleTester Example: Tests Rectangle by creating an instance and printing its dimensions.

Method Calling in Rectangle Class

• Getters for Rectangle Class: getHeight(), getWidth(), and getArea() methods return corresponding attributes.
• RectangleTester Use: Creates a rectangle instance and prints its dimensions and area using the defined methods.

Point Class Usage

• Point Class Features: Stores x and y coordinates, includes a method to move the point and overrides toString() to display position.
• PointTester Example: Demonstrates creation, movement, and printing of Point objects.

Student Class Implementation

• Attributes of Student Class: Contains firstName, lastName, and gradeLevel, and includes a toString() method for representation.
• StudentTester Demonstration: Creates student instances and prints their information.

Text Message Class

• TextMessage Class Design: Defines sender, receiver, and message, with a toString() method for formatted output.
• Messages Example: Instantiates and prints messages between Bart and Lisa.

Coin Flip Simulation

• CoinFlips Class: Simulates FLIPS number of coin tosses, counting heads and tails outcomes, and calculates percentages.
• Randomizer Usage: Generates random boolean values for coin toss outcomes.

Longest Streak Tracker

• LongestStreak Class: Tracks longest consecutive "Heads" results from flips, resetting streak upon a "Tails" outcome.
• Implementation of Random Flips: Uses Randomizer for generating coin toss results.

Distance Calculation Between Locations

• GeoLocation Class: Contains latitude and longitude data; includes method for distance calculation based on spherical law of cosines.
• HowFarAway Program: Prompts user for location coordinates and calculates distance between two geographical points.

Triangle Class Details

• Triangle Attributes: Initialized with width and height, includes toString() for formatted output.
• TriangleTester Usage: Tests triangle creation and output representation.

Flower and Dog Class Implementations

• Flower Class: Encapsulates flower details (name, color, genus, species) with a descriptive toString().
• Dog Class: Represents dog breed and name, with a formatter in toString() to display information.

Student Class Enhancements

• GPA Attribute Addition: Introduces a GPA field to student class with getter/setter methods and honors student determination.
• StudentTester Expansion: Logs output for student GPA and honors status checks.

Pizza Class Construction

• Pizza Object Design: Comprises type, toppings, and size with a formatted string representation.

Fraction Class Implementation

• Fraction Class: Represents rational numbers with numerator and denominator; includes toString() and getter/setter methods.

Batting Average Calculation

• BaseballPlayer Class: Stores player stats, includes a method to calculate batting average, and formatted output for player performance.

Static Player Management

• Player Class: Maintains a static count of players, with a maximum limit and features construction to increase player count upon instantiation.

Unit Circle Calculation

• UnitCircle Class: Computes cosine and sine for angles in radians, displaying results for each calculated angle.

Text Message Getter Methods

• TextMessage Class: Includes getter methods for sender, receiver, and message content, facilitating information retrieval.

Fraction Getter/Setter Implementation

• Fraction Class Enhancements: Adds methods to retrieve and modify numerator and denominator values, improving data encapsulation.### Game Full Function
• gameFull() checks if the total number of players has reached the maximum limit.
• Returns true if totalPlayers is greater than or equal to maxPlayers.

Circle Area Calculation

• Class CircleTester tests the area calculation of circles with specific radii.
• Creates a Circle object with radius 5 and prints its area.
• Creates another Circle object with radius 12 and prints its area.
• Class Circle defines a static constant PI for mathematical calculations.
• getArea() method calculates the area using the formula: Area = π * radius².

Rock, Paper, Scissors Winner Logic

• Method getWinner() determines the result between the user's choice and the computer's choice.
• If both choices are the same, it returns "Tie".
• Implements rules for winning: rock beats scissors, scissors beats paper, paper beats rock.

Rock, Paper, Scissors Game Implementation

• Class RockPaperScissors facilitates interaction with the user through console inputs.
• Utilizes constants for win messages and options (rock, paper, scissors).
• Continues taking user input until a null value is provided.
• Randomly generates the computer's choice using Randomizer.

Randomizer Class

• Singleton design pattern ensures only one instance of the Random object exists.
• Provides various random number generation methods:
  • nextBoolean(), nextInt(min, max), and nextDouble(min, max).
• Allows customization of probability for boolean outcomes.

Product Method Overloading

• Class Product defines multiple overloaded methods to calculate products of different data types.
• Supports operations for:
  • Two integers
  • Two doubles
  • Integer and double in either order
  • Three integers or three doubles.
• Each method outputs the product result after performing the calculation.

Variable Scope in Math Operations

• Class MathOperations illustrates usage of local and instance variables.
• Defines various mathematical operations including sum, difference, product, circleCircumference, and circleArea.
• Prints out values of PI, and parameters within method scopes to demonstrate variable accessibility.
• Calculates circumference and area by invoking the respective formulas.