Session 13

Source Code

import java.util.*;

public class Week13 {
    public static void main(String[] args) {
        String myName = ""; // add your name
        System.out.println("Week 13" + " - " + myName);

        // Menu
        System.out.println("Menu");
        System.out.println("E1 - Example 1");

        // setup Scanner
        Scanner in = new Scanner(System.in);
        System.out.print("Choice: ");
        String choice = in.nextLine();

        // switch choices
        switch (choice) {
            case "E1":
                System.out.println("Example 1");
                example1();
                break;
            case "E2":
                System.out.println("Example 2");
                example2();
                break;
            case "E3":
                System.out.println("Example 3");
                example3();
                break;
            case "E4":
                System.out.println("Example 4");
                example4();
                break;
            case "E5":
                System.out.println("Example 5");
                example5();
                break;
            case "E6":
                System.out.println("Example 6");
                example6();
                break;
            case "E7":
                System.out.println("Example 7");
                example7();
                break;
            default:
                System.out.println("Invalid choice");
                
        }
    }

    // example1 method
    public static void example1() {
        // Create two points


        // Display the points
        
        
    }

    // example2 method
    public static void example2() {
        // Create two points


        // Display the points
        
        
        // Swap the coordinates
        
        
        // Display the points
        

    }

    // example3 method
    public static void example3() {


    }

    // example4 method
    public static void example4() {
        

    }
    // example5 method
    public static void example5() {
        // Create coins for two players
        
        
        // Each player flips their coin
        
        
        // Show the results of the flips
        
        
        // Determine the winner
        

    }
    // example6 method
    public static void example6() {
        // Using the default constructor


    }
    // example7 method
    public static void example7() {
        // Using the parameterized constructor


    }

}

Point.java

/**
 * The Point class represents a point in 2D space
 * with x and y coordinates.
 */
public class Point {
    // instance variables



    /**
     * Constructs a Point with specified x and y coordinates.
     *
     * @param x The x-coordinate of the point.
     * @param y The y-coordinate of the point.
     */



    /**
     * Sets the x-coordinate of the point.
     *
     * @param x The new x-coordinate.
     */



    /**
     * Sets the y-coordinate of the point.
     *
     * @param y The new y-coordinate.
     */



    /**
     * Gets the x-coordinate of the point.
     *
     * @return The x-coordinate.
     */



    /**
     * Gets the y-coordinate of the point.
     *
     * @return The y-coordinate.
     */



    /**
     * Returns a string representation of the point.
     *
     * @return A string in the format "(x, y)".
     */
    @Override


}

Coin.java

/**
 * The Coin class represents a coin with two sides: Heads and Tails.
 * It provides methods to flip the coin, check if it's heads,
 * and retrieve the current state as a string.
 */
public class Coin {
    // instance variables
    // 0 for Heads, 1 for Tails
    

    /**
     * Initializes the coin by flipping it to set a random initial state.
     */
    

    /**
     * Flips the coin to randomly set the state to Heads or Tails.
     */
    

    /**
     * Checks if the current state of the coin is Heads.
     *
     * @return true if the coin is heads, false otherwise.
     */
   
   

    /**
     * Returns a string representation of the current state of the coin.
     *
     * @return "Heads" if the coin is heads, "Tails" otherwise.
     */
    @Override
    
    
}

Book.java

public class Book {

    // Properties


    // Constructor


    // Getters


    // Method to mark the book as read


    // Method to provide a string representation of the book
    @Override



    // Main method to test the Book class
    public static void main(String[] args) {
        // Create three instances of your favorite books


        // Print the title, author, and pages for each book
 
 
        // Mark all books as read


        // Print each book's string representation


    }
}

Ingredient.java

/**
 * The Ingredient class represents an ingredient in a recipe or inventory.
 * Each ingredient has a name, an amount, a unit of measurement, and an 
 * indication of whether it is organic.
 */
public class Ingredient {

    // Instance variables
    private String name;
    private double amount;
    private String unit;
    private boolean organic;

    /**
     * Constructs a new Ingredient with the specified properties.
     *
     * @param name    The name of the ingredient.
     * @param amount  The quantity of the ingredient.
     * @param unit    The unit of measurement for the ingredient.
     * @param organic True if the ingredient is organic; false otherwise.
     */
    public Ingredient(String name, double amount, String unit, boolean organic) {
        this.name = name;
        this.amount = amount;
        this.unit = unit;
        this.organic = organic;
    }

    /**
     * Returns the name of the ingredient.
     *
     * @return The name of the ingredient.
     */
    public String getName() {
        return name;
    }

    /**
     * Returns the amount of the ingredient.
     *
     * @return The quantity of the ingredient.
     */
    public double getAmount() {
        return amount;
    }

    /**
     * Returns the unit of measurement for the ingredient.
     *
     * @return The unit of measurement (e.g., "cups", "grams").
     */
    public String getUnit() {
        return unit;
    }

    /**
     * Checks if the ingredient is organic.
     *
     * @return True if the ingredient is organic, false otherwise.
     */
    public boolean isOrganic() {
        return organic;
    }
}

Recipe.java

/**
 * The Recipe class represents a recipe with a name, a main ingredient,
 * a secondary ingredient, and a cooking time. It provides methods to calculate
 * the cost of the recipe, check if the recipe is fully organic, and determine
 * the nutritional rating based on ingredient properties.
 */
public class Recipe {

    // Instance variables
    private Ingredient mainIngredient;
    private Ingredient secondaryIngredient;
    private String name;
    private int cookingTime;

    /**
     * Constructs a new Recipe with the specified name, ingredients, and cooking
     * time.
     * If invalid parameters are provided, default values are used instead.
     *
     * @param name        The name of the recipe. 
     * @param main        The main ingredient of the recipe. 
     * @param secondary   The secondary ingredient of the recipe. 
     * @param cookingTime The cooking time in minutes. If less than or equal to
     *                    zero, defaults to Integer.MIN_VALUE.
     */
    public Recipe(String name, Ingredient main, Ingredient secondary, int cookingTime) {
        this.name = name.trim();
        this.mainIngredient = main;
        this.secondaryIngredient = secondary;

        // Validate and assign cooking time
        if (cookingTime <= 0) {
            this.cookingTime = Integer.MIN_VALUE;
        } else {
            this.cookingTime = cookingTime;
        }
    }

    /**
     * Calculates the total cost of the recipe.
     *
     * @return The total cost of the recipe.
     */
    public double getCost() {
        double baseCost = mainIngredient.getAmount() * 2.5 +
                secondaryIngredient.getAmount() * 1.5;
        if (isFullyOrganic()) {
            baseCost *= 1.5; // Organic premium
        }
        return baseCost;
    }

    /**
     * Checks if the recipe is fully organic.
     *
     * @return True if both ingredients are organic, false otherwise.
     */
    public boolean isFullyOrganic() {
        return mainIngredient.isOrganic() &&
                secondaryIngredient.isOrganic();
    }

    /**
     * Determines the nutritional rating of the recipe.
     *
     * @return The nutritional rating ("A", "B", or "C").
     */
    public String getNutritionalRating() {
        if (isFullyOrganic()) {
            return "A";
        } else if (mainIngredient.isOrganic() || secondaryIngredient.isOrganic()) {
            return "B";
        } else {
            return "C";
        }
    }

    /**
     * Returns the cooking time for the recipe.
     *
     * @return The cooking time in minutes.
     */
    public int getCookingTime() {
        return cookingTime;
    }

    /**
     * Returns a string representation of the recipe.
     *
     * @return A string containing the recipe details.
     */
    @Override
    public String toString() {
        String recipeString = "Recipe: " + name + "\n";
        recipeString += "Main Ingredient: " + mainIngredient.getName() + "\n";
        recipeString += "Secondary Ingredient: " + secondaryIngredient.getName() + "\n";
        recipeString += "Rating: " + getNutritionalRating() + "\n";
        recipeString += "Cooking Time: " + getCookingTime() + " minutes";
        return recipeString;
    }
}

MealPlan.java

/**
 * The MealPlan class represents a weekly meal plan, including two recipes,
 * the total number of servings, and methods to calculate cost and check if
 * the plan is fully organic.
 */
public class MealPlan {



    /**
     * Constructs a MealPlan with the specified name, recipes, and servings.
     * If invalid parameters are provided, default values are used.
     *
     * @param name            The name of the meal plan.
     * @param breakfastRecipe The breakfast recipe.
     * @param lunchRecipe The breakfast recipe.
     * @param dinnerRecipe    The dinner recipe.
     */


 

    /**
     * Calculates the total cost of the meal plan for the week.
     *
     * @return The total cost of the meal plan.
     */
 
 
    /**
     * Checks if the meal plan is fully organic.
     *
     * @return True if both recipes are fully organic, false otherwise.
     */



    /**
     * Returns a summary of the meal plan, including its name, total cost,
     * and organic status.
     *
     * @return A summary string of the meal plan.
     */
 
    public static void main(String[] args) {
        // breakfast recipe
        
        
        // lunch recipe
        
        
        // dinner recipe
        

        // Valid meal plan


    }
}

Calculator.java

import java.util.*;
/**
 * The Calculator class provides basic arithmetic operations.
 * @author CGA Student
 */
public class Calculator {

    /**
     * Adds two integers.
     *
     * @param a the first integer
     * @param b the second integer
     * @return the sum of a and b
     */
    public int add(int a, int b) {
        return a + b;
    }

    /**
     * Main method.
     *
     * @param args command line arguments (not used)
     */
    public static void main(String[] args) {
        Calculator calculator = new Calculator();
        // Example
        System.out.println("Addition: " + calculator.add(10, 5));
        
        // Ask the user for two numbers
        
        
        
        
    }
}