Palindromes: in this program i have to try and figure out if the user input is a palindrome or not - palindrome

Question

When ever i execute the program the output says not a palindrome when it is a palindrome(only does this when input has spaces or punctuation) can some one tell me where i went wrong in my code?
public class Palindromes
{
public static void main(String[]args)
{
ConsoleIO keyboard=new ConsoleIO();
String word, word2="",terminate;
int length;
do
{
System.out.print("Enter a string:");
word=keyboard.readLine();
word=word.toLowerCase();
word=word.trim();
word=word.replaceAll("\\W", "");
word=word.replaceAll(" ","");
length=word.length();
//finding the reverse of the string
for(int i=length-1;i>=0;i--)
{
word2+=word.charAt(i);
}
//checking to see if the string is a palindrome
if(word.length()==1)
{
System.out.println("The string you entered is not a palindrome");
}
else if(word.equals(word2))
{
System.out.println("The string you entered is a palindrome.");
}
else
{
System.out.println("The string you entered is not a palindrome.");
}
System.out.print("Do you want to continue (yes or no):");
terminate=keyboard.readLine();
System.out.println();
}
while(terminate.equalsIgnoreCase("yes"));
}
}

Answer 1

I think you'd need to account for the punctuation because that will affect the plaindrome test you have. ra.cecar is not otherwise a palindrome. Have you tried adding more lines like the following?
word=word.replaceAll(".", "");
word=word.replaceAll("?", "");
word=word.replaceAll("!", "");
word=word.replaceAll("-", "");

Answer 2

To end all problem to Palindrome, I've made this Java program that will end all suffering to it. It's in Java so you're in luck. It basically strip every non-word character, put it to lower case just with 13 lines. Hope this help haha! Let's hope other guys would get lucky to find this too.
import java.util.Scanner;
public class Palindrome {
public static void main(String[]args){
if(isReverse()){System.out.println("This is a palindrome.");}
else{System.out.print("This is not a palindrome");}
}
public static boolean isReverse(){
Scanner keyboard = new Scanner(System.in);
System.out.print("Please type something: ");
String line = ((keyboard.nextLine()).toLowerCase()).replaceAll("\\W","");
return (line.equals(new StringBuffer(line).reverse().toString()));
}
}