CODEWITHSUNDEEP
c#arrays
robertpas
robertpas

Reputation: 673

C# adding unknown number of values into an array

I want to add multiple values into an array, but I want to stop when I feel like it.

Here is the condition I added

while (numbers[i] != 10)
{
    i++;
    numbers[i] = int.Parse(Console.ReadLine());
    Console.WriteLine(numbers[i]);
}

It will stop when the value entered is 10. But I want it to stop when I just press ENTER.

How do I do this?

Upvotes: 0

Views: 2408

Answers (4)

Mike Perrenoud
Mike Perrenoud

Reputation: 67898

Declare numbers like this.

List<int> numbers = new List<int>();

Then modify the loop as such.

while (numbers[i] != 10)
{
    i++;

    string input = Console.ReadLine();
    if (string.IsNullOrEmpty(input)) { break; }

    numbers.Add(int.Parse(input));
    Console.WriteLine(numbers[i]);  
}

Upvotes: 0

Jon
Jon

Reputation: 437326

If you are asking about how to detect the "just press ENTER" condition:

var input = Console.ReadLine();
if (input == "") {
    break;
}

numbers[i] = int.Parse(input);
// etc

Upvotes: 4

Vamsi
Vamsi

Reputation: 4253

I guess you are looking for some way to re-size the array, you can use Array.Resize

Upvotes: 0

Marc Gravell
Marc Gravell

Reputation: 1062502

var numbers = new List<int>();
string s;
while(!string.IsNullOrEmpty(s = Console.ReadLine())) {
    numbers.Add(int.Parse(s));
}

Upvotes: 3

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