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Palindrome assignment

I am still having an exceptional amount of trouble with java. This is my new assignment, if anyone can help I would greatly appreciate it. I don't even know where to start.

A word or phrase in which the letters spell the same message when written forward and backward (with whitespaces and punctuations not considered) is called a palindrome.

Write a simple Java program that detects palindromes. Your program should be named "PalindromeDetector.java", and the class in it should be named "PalindromeDetector".

The program should first ask for the input text:
Input text? user input

If the entered text is a palindrome, display the message:
This is a palindrome.

Otherwise display:
This is not a palindrome.

Notice that whitespaces and punctuations not considered; cases of characters don't matter, either. Thus the strings "ab, a " and "Was it a cat I saw?" are both palindromes. You can assume that the user input only possibly includes the following four punctuation marks:
, . ! ?
Mar 25 '07 #1
3 5820
r035198x
13,262 8TB
I am still having an exceptional amount of trouble with java. This is my new assignment, if anyone can help I would greatly appreciate it. I don't even know where to start.

A word or phrase in which the letters spell the same message when written forward and backward (with whitespaces and punctuations not considered) is called a palindrome.

Write a simple Java program that detects palindromes. Your program should be named "PalindromeDetector.java", and the class in it should be named "PalindromeDetector".

The program should first ask for the input text:
Input text? user input

If the entered text is a palindrome, display the message:
This is a palindrome.

Otherwise display:
This is not a palindrome.

Notice that whitespaces and punctuations not considered; cases of characters don't matter, either. Thus the strings "ab, a " and "Was it a cat I saw?" are both palindromes. You can assume that the user input only possibly includes the following four punctuation marks:
, . ! ?
Colin, go back to your teacher and explain to him your problems with the assignment. Once you get to understand the assignment better, you can come back with some code written and we can help from there.
Mar 26 '07 #2
ok so this is what I have for the code so far:

Expand|Select|Wrap|Line Numbers
  1. import java.io.*;
  2. import java.util.*;
  3. public class PalTest
  4.   {
  5.    public static void main(String[] args)
  6.    throws java.io.IOException   
  7.   {
  8.    String inputString;
  9.    StringBuffer S;
  10.  
  11.    InputStreamReader isr = new InputStreamReader(System.in);
  12.  
  13.    BufferedReader br = new BufferedReader(isr);
  14.  
  15.    System.out.println("Input Text? ");
  16.    inputString  = br.readLine();
  17.  
  18.    S = new StringBuffer(inputString);
  19.    S.reverse();
  20.  
  21.    if (inputString.equalsIgnoreCase(S.toString())) {
  22.    System.out.println("This is a palindrome.");
  23.   }
  24.   else {
  25.   System.out.println("This is not a palindrome.");
  26. }
  27. }
  28. }
  29.  
My only problem now is getting it to accept the punctuations , . ! ?
Mar 27 '07 #3
r035198x
13,262 8TB
ok so this is what I have for the code so far:

Expand|Select|Wrap|Line Numbers
  1. import java.io.*;
  2. import java.util.*;
  3. public class PalTest
  4. {
  5. public static void main(String[] args)
  6. throws java.io.IOException 
  7. {
  8. String inputString;
  9. StringBuffer S;
  10.  
  11. InputStreamReader isr = new InputStreamReader(System.in);
  12.  
  13. BufferedReader br = new BufferedReader(isr);
  14.  
  15. System.out.println("Input Text? ");
  16. inputString = br.readLine();
  17.  
  18. S = new StringBuffer(inputString);
  19. S.reverse();
  20.  
  21. if (inputString.equalsIgnoreCase(S.toString())) {
  22. System.out.println("This is a palindrome.");
  23. }
  24. else {
  25. System.out.println("This is not a palindrome.");
  26. }
  27. }
  28. }
  29.  
My only problem now is getting it to accept the punctuations , . ! ?
What problems are you getting with the punctuation?
Mar 28 '07 #4

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