Question

i am building a small app that act like a digital camera, and on my takephoto function i want to insert a random number to my array(i succeed doing that), my problem is that when i take multiple pictures the value always go into the first postion. my code:

public override void TakePhoto()
{
    Random rnd = new Random();
    int photo = rnd.Next(1, 10);
    for (int i = 0; i < 1; i++)
    {

        MemoryCard.buffer[i] = photo;
    }
}

class Program
{
    static void Main(string[] args)
    {

        DigitalCamera digitalCamera = 
            new DigitalCamera("kodak", 43, newMemoryCard, 3);

        digitalCamera.TakePhoto();
        digitalCamera.TakePhoto();
        digitalCamera.TakePhoto();

    }
}

how do i jump to the next position after each photo?

Answer 1

I think following modification to your code will resolve your issue:

class DigitalCamera
{
    static int currentPhotoNumber = 0;
    private Random rnd = new Random();

    public override void TakePhoto()
    {
        int photo = rnd.Next(1, 10);
        MemoryCard.buffer[currentPhotoNumber++] = photo;
    }
}
class Program
{
    static void Main(string[] args)
    {

        DigitalCamera digitalCamera = new DigitalCamera("kodak", 43, newMemoryCard, 3);

        digitalCamera.TakePhoto();
        digitalCamera.TakePhoto();
        digitalCamera.TakePhoto();

    }
}