First, I initialize an ArrayList to my code then add each input by the user. I manage to add a data and show but after doing so it throws an exception of OutOfRange and I don't see any reason why.
I already asked about something like this but it was to check the array has value stored yet Link to my first question. But the problem I encountered now is something this exception
static ArrayList fName = new ArrayList();
static ArrayList cNumber = new ArrayList();
public static void createContact()
{
Console.Write("\nEnter your full name: ");
fullName = Console.ReadLine();
fName.Add(fullName);
Console.Write("\nEnter your contact number: ");
contactNumber = Console.ReadLine();
cNumber.Add(contactNumber);
}
public static void displayContact()
{
if (fName.Count == 0 && cNumber.Count == 0)
{
Console.WriteLine("No Data Yet!");
}
else if (fName.Count > 0 && cNumber.Count > 0)
{
for (int j = 0; j < numbers.Length; j++)
{
Console.WriteLine(numbers[j] + ". " + fName[j] + " - " + cNumber[j]);
}
}
else if (fName.Count <= 10 && cNumber.Count <= 10)
{
Console.WriteLine("Maximum data acquired! Terminating program...");
}
}
The output goes something like this:
numbersrepresents, but evidently it has more items thanfNameorcNumber. I recommend learning to debug. You can step through your code with the debugger and inspect individual variables to see what data they hold, etc.numberscontain more items thanfNameorcNumber?numberscontains 2 items, so your loop (for (int j = 0; j < numbers.Length; j++)) visits item at index 0 first, and then item at index 1 next.fName, on the other hand, only contains 1 item. So on the first loop, you are able to access the item at index 0. On the second loop, you ask for the item at index 1 but that doesn't exist. That's why you get this error.