A Palindrome Is a Word or Phrase That Reads the Same

question 75

Multiple Choice

A palindrome is a word or phrase that reads the same forward or backward. Consider the following code snippet:
Public boolean palindrome(String string)
{
Return isPal(string, 0, string.length() - 1) ;
}
Private boolean isPal(String string, int left, int right)
{
If (left >= right)
{
Return true;
}
Else if (string.charAt(left) == string.charAt(right) )
{
Return isPal(string, left + 1, right - 1) ;
}
Else
{
Return false;
}
}
What is the purpose of the palindrome method?

• A) Return the palindrome to the calling method.
• B) Provide the string, along with its first and last indexes to the recursive isPal method.
• C) Send the recursive isPal method its terminating condition.
• D) Recursively call itself.