Array of positive and negative numbers C# Exercise - C# Programming Course

using System;  // Import the System namespace for basic functionality

class Program  // Define the main class
{
    static void Main()  // The entry point of the program
    {
        // Declare an array to store 10 real numbers
        double[] numbers = new double[10];
        
        // Variables to store the sum and count of positive and negative numbers
        double positiveSum = 0, negativeSum = 0;
        int positiveCount = 0, negativeCount = 0;

        // Ask the user to input 10 real numbers
        Console.WriteLine("Please enter 10 real numbers:");

        // Loop to input 10 numbers
        for (int i = 0; i < 10; i++)
        {
            Console.Write($"Enter number {i + 1}: ");
            numbers[i] = Convert.ToDouble(Console.ReadLine());  // Store each number in the array
        }

        // Calculate the sum and count for positive and negative numbers
        foreach (double num in numbers)
        {
            if (num > 0)  // Check if the number is positive
            {
                positiveSum += num;
                positiveCount++;
            }
            else if (num < 0)  // Check if the number is negative
            {
                negativeSum += num;
                negativeCount++;
            }
        }

        // Display the average of the positive numbers, if there are any
        if (positiveCount > 0)
        {
            double positiveAverage = positiveSum / positiveCount;
            Console.WriteLine($"The average of the positive numbers is: {positiveAverage}");
        }
        else
        {
            Console.WriteLine("There are no positive numbers.");
        }

        // Display the average of the negative numbers, if there are any
        if (negativeCount > 0)
        {
            double negativeAverage = negativeSum / negativeCount;
            Console.WriteLine($"The average of the negative numbers is: {negativeAverage}");
        }
        else
        {
            Console.WriteLine("There are no negative numbers.");
        }
    }
}