BunnyEars.java

/*
 * Name: Janan Patel
 * Date: 11/15/2021
 * Course Number: CSC 220/Data Structures
 * Course Name: CSC 220/Data Structures
 * Problem Number: Bunny ear counter
 * Email: [email protected]
 * Short Description of the Problem: This program counts the amount of ears of bunnies with recursive code
 */

import java.util.Scanner;

public class BunnyEars {
	private final static String TITLE = "The bunny ears program";
	private final static String CONTINUE_PROMPT = "Do this again? [y/N] ";

	// **********************************************
	// Put as many methods you need here
	public static int bunnyEars(int bunnies) {

		if (bunnies == 0)
			return 0;

		return 2 + bunnyEars(bunnies - 1);
	}

	// **********************************************
	// Start your logic coding in the process method
	private static void process(Scanner input, String args[]) throws Exception {

		System.out.println("Enter the amount of bunnies: ");
		int amount = input.nextInt();
		System.out.println(amount + " Bunnies will have " + bunnyEars(amount) + " Ears");
		input.nextLine();
	}

	// **********************************************
	// Do not change the doThisAgain method
	private static boolean doThisAgain(Scanner input, String prompt) {
		System.out.print(prompt);
		String doOver = input.nextLine();
		return doOver.trim().equalsIgnoreCase("Y");
	}

	// **********************************************
	// Do not change the main method
	public static void main(String args[]) throws Exception {
		System.out.println("Welcome to " + TITLE);
		Scanner input = new Scanner(System.in);
		do {
			process(input, args);
		} while (doThisAgain(input, CONTINUE_PROMPT));
		input.close();
		System.out.println("Thank you for using " + TITLE);
	}

}

SumDigits.java

/*
 * Name: Janan Patel
 * Date: 11/15/2021
 * Course Number: CSC 220/Data Structures
 * Course Name: CSC 220/Data Structures
 * Problem Number: Digit adder 
 * Email: [email protected]
 * Short Description of the Problem: This program adds up each digit of the number
 */

import java.util.Scanner;

public class SumDigits {
	private final static String TITLE = "The digits' sum program";
	private final static String CONTINUE_PROMPT = "Do this again? [y/N] ";

	// **********************************************
	// Put as many methods you need here
	public static int sumDigits(int n) {
		if (n == 0)
			return 0;

		return ((n % 10) + sumDigits(n / 10));
	}

	// **********************************************
	// Start your logic coding in the process method
	private static void process(Scanner input, String args[]) throws Exception {

		System.out.println("Enter one numbers as a integar that you would like to sum up: ");
		int x = input.nextInt();
		System.out.println("The sum of the numbers of that number is: " + sumDigits(x));

		input.nextLine();
	}

	// **********************************************
	// Do not change the doThisAgain method
	private static boolean doThisAgain(Scanner input, String prompt) {
		System.out.print(prompt);
		String doOver = input.nextLine();
		return doOver.trim().equalsIgnoreCase("Y");
	}

	// **********************************************
	// Do not change the main method
	public static void main(String args[]) throws Exception {
		System.out.println("Welcome to " + TITLE);
		Scanner input = new Scanner(System.in);
		do {
			process(input, args);
		} while (doThisAgain(input, CONTINUE_PROMPT));
		input.close();
		System.out.println("Thank you for using " + TITLE);
	}

}