Program.cs

using System;

namespace HospitalManagementSystem
{
    // This is a class for patients that stores their information.
    public class Patient
    {
        //Information in questionis the name, age and condition.
        public string Name { get; set; }
        public int Age { get; set; }
        public string Condition { get; set; }

        //This initializes the properties of each patient.
        public Patient(string name, int age, string condition)
        {
            Name = name;
            Age = age;
            Condition = condition;
        }

        //A way to show the information of each patient.
        public override string ToString()
        {
            return $"Name: {Name}, Age: {Age}, Condition: {Condition}";
        }

    }

    //This is the hospital class and is used to keep track of the patients and the wards.
    public class Hospital
    {
        //Shows the capacit, number of wards and patients being stored in a 2D array.
        private const int WardCount = 3;
        private const int WardCapacity = 4;
        private Patient[,] Wards;

        //Initializes hospital wards.
        public Hospital()
        {
            Wards = new Patient[WardCount, WardCapacity];
        }

        //This is a way to add each patient to a suitable ward
        public bool AddPatient(int wardNumber, Patient patient)
        {
            //Proves the ward number, add a number again when ward number entered is invalid
            if (wardNumber < 0 || wardNumber >= WardCount)
            {
                Console.WriteLine($"Invalid ward number. Please select a ward between 0-{WardCount - 1}.");
                return false;
            }

            //Helps know if there are any available beds, chooses the first available one.
            for (int i = 0; i < WardCapacity; i++)
            {
                if (Wards[wardNumber, i] == null)
                {
                    Wards[wardNumber, i] = patient;
                    Console.WriteLine($"Patient {patient.Name} added to Ward number {wardNumber} successfully.");
                    return true;
                }
            }

            //Results for when there are no avaialable beds found.
            Console.WriteLine($"Ward {wardNumber} is currently full.");
            return false;
        }

        //Provides information of all patients in the occupied wards.
        public void DisplayPatients()
        {
            Console.WriteLine("\nList of Patients:");
            for (int ward = 0; ward < WardCount; ward++)
            {
                Console.WriteLine($"Ward {ward}:");
                bool wardEmpty = true;

                for (int bed = 0; bed < WardCapacity; bed++)
                {

                    if (Wards[ward, bed] != null)
                    {
                        Console.WriteLine($" Bed {bed + 1}: {Wards[ward, bed]}");
                        wardEmpty = false;
                    }
                }

                if (wardEmpty)
                {
                    Console.WriteLine("  No patients in this ward.");
                }

            }
        }
    }


    internal class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("====  Metropolitan General Hopital Management System  ====");
            Hospital hospital = new Hospital();

            while (true)
            {
                //shows the different options a patient should select in the menu.
                Console.WriteLine("\nMain Menu: ");
                Console.WriteLine("1. Add a patient. ");
                Console.WriteLine("2. Dislay Patients. ");
                Console.WriteLine("3. Exit. ");
                Console.Write("Enter your choice:  ");

                //User's input
                if (int.TryParse(Console.ReadLine(), out int choice))
                {
                    Console.WriteLine("Invalid input. Please enter a number.");
                    continue;
                }

                switch (choice)
                {
                    //Adds the patient information.
                    case 1:
                        try
                        {
                            Console.WriteLine("Enter patient's name: ");
                            string name = Console.ReadLine();

                            Console.WriteLine("Enter patient's age: ");
                            int age = int.Parse(Console.ReadLine());

                            Console.WriteLine("Enter patient's condition: ");
                            string condition = Console.ReadLine();

                            Console.WriteLine("Enter ward number (0-2): ");
                            int ward = int.Parse(Console.ReadLine());

                            Patient newPatient = new Patient(name, age, condition);
                            hospital.AddPatient(ward, newPatient);
                        }
                        catch (FormatException)
                        {
                            Console.WriteLine("Invalid input. Please try again.");
                        }
                        break;

                    //Displays the informtion of the patient
                    case 2:
                        hospital.DisplayPatients();
                        break;

                    //The program is being exited
                    case 3:
                        Console.WriteLine("Exiting program...");
                        return;

                    //When there is an invalid selection on the menu
                    default:
                        Console.WriteLine("Invalid choice. Please select between 1-3.");
                        break;

                }

            }
        }
    }
}