Palindrome problem

apoch632

double post sorry

apoch632

import java.util.*;
import javax.swing.*;
import java.awt.*;

public class reverseString()
{
public String wordEntered;
public String wordReversed;

public static void main(String[] args)
{
JOptionPane.showMessageDialog(null,"Hello and welcome to Palindrome Checker");
wordEntered = JOptionPane.showInputDialog("Please enter the string you wish to reverse and check");
palindromeChecker(wordEntered);
System.exit(0);
}

public static String palindromeChecker(String n)
{
String entered = n

if(entered.length() == 0)
{
JOptionPane.showMessageDialog("You have entered a blank string and program will now exit");
return null;
}
String flippedWord = flipWord(entered);
if(flippedWord == entered)
{
JOptionPane.showMessageDialog(null,"The word entered is " + entered + " The reverse is " + flippedWord + " it is a Palindrome");
return flippedWord;
}
else if(flippedWord!= entered)
{
JOptionPane.showMessageDialog(null,"The word entered is " + entered + " The reverse is " + flippedWord + " it is a Palindrome");
return flippedWord;
}
else
{
return null;
}
}
public static String flipWord(String y)
{
String x = "";
for(int i = y.length()-1;i>=0;i--)
{
x += y.charAt(i);
}
return x;
}

No matter what string i enter and then reverse e.g. navan it is saying it is not a palindrome. Anyone have any ideas how to fix this.

henbane

I haven't gone through the whole program but

flippedWord == entered

should be

flippedWord.equals(entered)

for String comparison.

apoch632

Forgot about that. Just slipped my mind. Thanks

Mutant_Fruit

for(int i = 0; i < enteredWord.Length/2; i++)
    if(enteredWord[i] != enteredWord[enteredWord.Length - 1 - i])
         return false;  // not a palindrome.

That'd be better than duplicating the word by reversing it, then doing a comparison