beep when an array contains a null in csharp

You can use a for loop to iterate through the array and check if any element is null. If a null is found, you can emit a beep sound using Console.Beep() method.

Here's the code:

main.cs
int[] arr = {1, 2, null, 4, 5};

for (int i = 0; i < arr.Length; i++)
{
    if (arr[i] == null)
    {
        Console.WriteLine("Null value found at index " + i);
        Console.Beep();
    }
}
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In the above code, we are checking if any element in the array is null by using arr[i] == null inside the for loop. If a null is found, we print a message to the console and emit a beep using Console.Beep() method.