Check for characters specifically in string not everytime it appears

Questions & Answers
1

Im trying to input numbers as a string and print them out if a certain number was found.

Lets say the number was “1”. How would I check if the string contained “1” and not every “1” that appears such as “10” “14” etc…

Ive tried variableString.contains(“stringneeded”) but it doesnt check for specifics.

Im using C# btw :slight_smile:

2

Will the string only contain a number ?

    string sInput = "12";
    int number;
    bool result = Int32.TryParse(sInput, out number);
    if (result)
        Console.WriteLine("number: {0}", number);

//----------------------

Do you only want the first number if there are more than one ?

    string inputData = "a11is2for3apple,1shiny231and1.1red";

    var data = Regex.Match(inputData, @"\d+").Value;
    Console.WriteLine("string data: {0}", data);

//----------------------

Do you want a list of ALL numbers ?

    string input = "a11is2for3apple,1shiny231and1.1red";

    string[] numbers = Regex.Split(input, @"\D+");

    foreach (string value in numbers)
    {
        if (!string.IsNullOrEmpty(value))
        {
            int i = int.Parse(value);
            Console.WriteLine("Integer: {0}", i);
        }
    }

//----------------------

Result:

number: 12

string data: 11

Integer: 11
Integer: 2
Integer: 3
Integer: 1
Integer: 231
Integer: 1
Integer: 1