Palindrome Calculation for both a string and a number

Question

1.00/5 (3 votes)

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Hai,
I want to find whether a number or a string is a palindrome or not in ASP.NET.

Thanks & Regards,
Sukanya Narayanan.

Posted 28-Oct-10 0:23am

SukanyaN

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Comments

Rajesh Anuhya 28-Oct-10 6:24am

No Effort

SukanyaN 28-Oct-10 6:26am

I don get you...
You mean to say that no one has tried it in ASP.NET?

Sandeep Mewara 28-Oct-10 8:11am

No effort

3 solutions

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Mohd Wasif · Accepted Answer · 2010-10-28T00:37:00

char[] strArray = txtCustName.Text.ToCharArray();
Array.Reverse(strArray);
string strReversed = new string(strArray);
string reverseString = strReversed;
if (reverseString == txtCustName.Text)
{
Label1.Text ="It is palimdromae";
}

RECSEN · Accepted Answer · 2010-10-28T00:42:00

use the below function

private static bool Pal(string s) {
for (int i = 0; i < s.Length; i++) {
if (s[i] != s[s.Length - 1 - i]) {
return false;
}
}
return true;
}

OR
public static bool IsPalindrome(string palindromeCandidate)
{
if (string.IsNullOrEmpty(palindromeCandidate))
{
return true;
}
Regex nonAlphaChars = new Regex("[^a-z0-9]");
string alphaOnlyCandidate = nonAlphaChars.Replace(palindromeCandidate.ToLower(), "");
if (string.IsNullOrEmpty(alphaOnlyCandidate))
{
return true;
}
int leftIndex = 0;
int rightIndex = alphaOnlyCandidate.Length - 1;
while (rightIndex > leftIndex)
{
if (alphaOnlyCandidate[leftIndex] != alphaOnlyCandidate[rightIndex])
{
return false;
}
leftIndex++;
rightIndex--;
}
return true;
}

RECSEN · Accepted Answer · 2010-10-28T00:27:00

Solution 1

Find the below link this will help you

http://www.eggheadcafe.com/community/aspnet/2/10048946/how-to-find-that-given-string-is-palindrome-or-not.aspx

Posted 28-Oct-10 0:27am

RECSEN

Palindrome Calculation for both a string and a number

3 solutions

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