C# Pets console app which displays information about pet animals and searching functionality for finding specific pets.

csharp-pets-app.cs

using System;

// ourAnimals array will store the following: 
string animalSpecies = "";
string animalID = "";
string animalAge = "";
string animalPhysicalDescription = "";
string animalPersonalityDescription = "";
string animalNickname = "";
string suggestedDonation = "";

// variables that support data entry
int maxPets = 8;
string? readResult;
string menuSelection = "";
decimal decimalDonation = 0.00m;

// array used to store runtime data
string[,] ourAnimals = new string[maxPets, 7];

// sample data ourAnimals array entries
for (int i = 0; i < maxPets; i++)
{
	switch (i)
	{
		case 0:
			animalSpecies = "dog";
			animalID = "d1";
			animalAge = "2";
			animalPhysicalDescription = "medium sized cream colored female golden retriever weighing about 45 pounds. housebroken.";
			animalPersonalityDescription = "loves to have her belly rubbed and likes to chase her tail. gives lots of kisses.";
			animalNickname = "lola";
			suggestedDonation = "85.00";
			break;

		case 1:
			animalSpecies = "dog";
			animalID = "d2";
			animalAge = "9";
			animalPhysicalDescription = "large reddish-brown male golden retriever weighing about 85 pounds. housebroken.";
			animalPersonalityDescription = "loves to have his ears rubbed when he greets you at the door, or at any time! loves to lean-in and give doggy hugs.";
			animalNickname = "gus";
			suggestedDonation = "49.99";
			break;

		case 2:
			animalSpecies = "cat";
			animalID = "c3";
			animalAge = "1";
			animalPhysicalDescription = "small white female weighing about 8 pounds. litter box trained.";
			animalPersonalityDescription = "friendly";
			animalNickname = "snow";
			suggestedDonation = "40.00";
			break;

		case 3:
			animalSpecies = "cat";
			animalID = "c4";
			animalAge = "";
			animalPhysicalDescription = "";
			animalPersonalityDescription = "";
			animalNickname = "lion";
			suggestedDonation = "";

			break;

		default:
			animalSpecies = "";
			animalID = "";
			animalAge = "";
			animalPhysicalDescription = "";
			animalPersonalityDescription = "";
			animalNickname = "";
			suggestedDonation = "";
			break;

	}

	ourAnimals[i, 0] = "ID #: " + animalID;
	ourAnimals[i, 1] = "Species: " + animalSpecies;
	ourAnimals[i, 2] = "Age: " + animalAge;
	ourAnimals[i, 3] = "Nickname: " + animalNickname;
	ourAnimals[i, 4] = "Physical description: " + animalPhysicalDescription;
	ourAnimals[i, 5] = "Personality: " + animalPersonalityDescription;
	
	if (!decimal.TryParse(suggestedDonation, out decimalDonation)){
		decimalDonation = 45.00m; // if suggestedDonation NOT a number, default to 45.00
	}
	ourAnimals[i, 6] = $"Suggested Donation: {decimalDonation:C2}";
}

// top-level menu options
do
{
	// NOTE: the Console.Clear method is throwing an exception in debug sessions
	Console.Clear();

	Console.WriteLine("Welcome to the Contoso PetFriends app. Your main menu options are:");
	Console.WriteLine(" 1. List all of our current pet information");
	Console.WriteLine(" 2. Display all dogs with a specified characteristic");
	Console.WriteLine();
	Console.WriteLine("Enter your selection number (or type Exit to exit the program)");

	readResult = Console.ReadLine();
	if (readResult != null)
	{
		menuSelection = readResult.ToLower();
	}

	// switch-case to process the selected menu option
	switch (menuSelection)
	{
		case "1":
			// list all pet info
			for (int i = 0; i < maxPets; i++)
			{
				if (ourAnimals[i, 0] != "ID #: ")
				{
					Console.WriteLine();
					for (int j = 0; j < 7; j++)
					{
						Console.WriteLine(ourAnimals[i, j].ToString());
					}
				}
			}

			Console.WriteLine("\r\nPress the Enter key to continue");
			readResult = Console.ReadLine();

			break;

		case "2":
			// #1 Display all dogs with a multiple search characteristics

			// string dogCharacteristic = "";
			string[] searches = new string[10];
			int numberSearches = 0;

			while (numberSearches == 0)
			{
				// #2 have user enter multiple comma separated characteristics to search for
				Console.WriteLine($"\r\nEnter the desired dog characteristics separated by commas: ");
				readResult = Console.ReadLine();
				if (readResult != null)
				{
					searches = readResult.Split(",");
					numberSearches = searches.Length;
					for (int i = 0; i < numberSearches; i++) {
						searches[i] = searches[i].ToLower().Trim();
					}
					Console.WriteLine();
				}
			}

			bool noMatchesDog = true;
			bool thisDog = false;
			string dogDescription = "";
			
			// #4 update to "rotating" animation with countdown
			string[] searchingIcons = {" | ", " / ", " - ", " \\ "};

			// loop ourAnimals array to search for matching animals
			for (int i = 0; i < maxPets; i++)
			{
				if (ourAnimals[i, 1].Contains("dog"))
				{
					// Search combined descriptions and report results
					dogDescription = ourAnimals[i, 4] + "\r\n" + ourAnimals[i, 5];

					thisDog = false;
					foreach (string search in searches) {
						// #5 update "searching" message to show countdown 
						for (int sec = 3; sec > 0; sec--) {
							foreach (string icon in searchingIcons)
							{
								Console.Write($"\rsearching our dog {ourAnimals[i, 3]} for {search} {icon} {sec}");
								Thread.Sleep(250);
							}
						}
						Console.Write($"\r{new String(' ', Console.BufferWidth)}");

						if (dogDescription.Contains(search))
						{
							Console.WriteLine($"Our dog {ourAnimals[i, 3]} is a match for search word {search}!");
							noMatchesDog = false;
							thisDog = true;
						}
					}
					if (thisDog) {
						Console.WriteLine($"\nNickname: {ourAnimals[i, 3]} ({ourAnimals[i, 0]})");
						Console.WriteLine($"Physical description: {ourAnimals[i, 4]}");
						Console.WriteLine($"Personality: {ourAnimals[i, 5]}");
					}
				}
			}

			if (noMatchesDog)
			{
				Console.WriteLine("None of our dogs are a match found for: " + readResult);
			}

			Console.WriteLine("\n\rPress the Enter key to continue");
			readResult = Console.ReadLine();

			break;

		default:
			break;
	}

} while (menuSelection != "exit");