A Palindrome Is a Word or Phrase That Reads the Same

question 67

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 does the condition left >= right refer to?

• A) An empty or one-character string is considered a palindrome.
• B) The string is not a palindrome.
• C) It cannot be determined if the string is a palindrome.
• D) You have reached the middle of the string.

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