How to check whether the input is int or string

Question

If the input is numerical then run numPalindrome().

If the input is alphabetical then run strPalindrome().

static void Main(string[] args)
{
    Console.Write("Enter your Input: ");
    var input = Console.ReadLine();
    if (What to do?????)
    {
        strPalindrome();
    }
    else
    {
        numPalindrome();
    }
}

Maybe use int.TryParse?

Uwe Keim
– Uwe Keim

2021-08-16 11:52:04 +00:00
Commented Aug 16, 2021 at 11:52 — Uwe Keim
– Uwe Keim, Commented Aug 16, 2021 at 11:52
int.TryParse might helpful

Klaus Gütter
– Klaus Gütter

2021-08-16 11:52:23 +00:00
Commented Aug 16, 2021 at 11:52 — Klaus Gütter
– Klaus Gütter, Commented Aug 16, 2021 at 11:52
Int.TryParse() but could use RegEx.

AliK
– AliK

2021-08-16 12:12:41 +00:00
Commented Aug 16, 2021 at 12:12 — AliK
– AliK, Commented Aug 16, 2021 at 12:12

Olivier Jacot-Descombes · Accepted Answer · 2021-08-16 12:24:08Z

6

if(int.TryParse(input, out int value))
{
  // input is an int, call numPalindrome(value)
}
else
{
  // input is not an int, call strPalindrome()
}

edited Aug 16, 2021 at 12:24

Olivier Jacot-Descombes

114k14 gold badges149 silver badges202 bronze badges

answered Aug 16, 2021 at 11:52

Yash Gupta

2,5751 gold badge18 silver badges22 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Christopher Over a year ago

^^That. The only way to know if it is a int, is to try to parse it to int. | Just be warned, that value is always set - TryParse defaults to setting it to 0 in case the parsing fails. So do not use it by accident.

Yash Gupta Over a year ago

@Christopher - that's correct. Thank you for adding this point.

Klaus Gütter Over a year ago

int.Parse will of course also accept negtive number. If you don't want these, use uint.TryParse.

Collectives™ on Stack Overflow

How to check whether the input is int or string

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related