Q.2: How to find if the given string is a palindrome or not?

 Ans.: The user will input a string and we need to print “Palindrome” or “Not Palindrome” based on whether the input string is a palindrome or not.

• input: madam, output: Palindrome
• input: step on no pets, output: Palindrome
• input: book, output: Not Palindrome

if we pass an integer as string parameter then also this method will give the correct output

• input: 1221, output: Palindrome

internal static void chkPalindrome(string str)

{

bool flag = false;

for (int i = 0, j = str.Length - 1; i < str.Length / 2; i++, j--)

{

if (str[i] != str[j])

{

flag = false;

break;

}

else

flag = true;

}

if (flag)

{

Console.WriteLine("Palindrome");

}

else

Console.WriteLine("Not Palindrome");

}