RE: Programming challenge 3 in java.

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Alpha Tr chiken

The "ignore formatting and punctucations" threw me off for a minute and required me to write an extra function , but all in all it was a good refresher.

// code start
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

import java.lang.Character;
public class p3 {

/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{

String str;
boolean b = false;

BufferedReader in = new BufferedReader(new FileReader("somefile.txt"));
while ((str = in.readLine()) != null)
{
b = isPalindrome(removeFormatting(str));
if(b)
{
System.out.println(str);
}

}

in.close();

}

public static String removeFormatting(String s)
{
String copy ="";
for(int pos = 0; pos<=s.length()-1; pos++)
{
if(Character.isLetter(s.charAt(pos)))
copy += s.charAt(pos);
}
return copy;
}

public static String reverseWord(String s)
{
String copyR = "";

for(int pos = s.length()-1; pos>=0; pos--) {
copyR += s.charAt(pos);
}
return copyR;
}

public static boolean isPalindrome(String s)
{
boolean b = false;
int i = 0;

String reversedWord;
reversedWord= reverseWord(s);
// System.out.println(reversedWord);

if (s.equalsIgnoreCase(reversedWord))
{
b = true;
}
return b;

}

}

// code end

and the output matches your output.

Next, i'll do it in scheme( for fun ) and *maybe* prolog.

-chiken.

Replies:

Programming challenge 3 -easy- - Delta Cpt dopel 2008-07-20 23:35:30
- the C way - Gamma Tr Chudik 2008-08-10 18:31:49
- Contd VBScript - Delta Cpt dopel 2008-07-29 03:25:22
- VBscript is easy - Ker sefo 2008-07-24 14:16:19
  - RE: VBscript is easy - Beta Tr chiken 2008-07-28 06:36:15
    - ok ok - Ker sefo 2008-07-28 08:11:23
  - indeed it is :) - Delta Cpt dopel 2008-07-24 16:44:24
    - RE: indeed it is :) - Ker sefo 2008-07-25 00:51:10
- >RE: Programming challenge 3 in java. - Alpha Tr chiken 2008-07-21 00:54:35 <
  - requirements, requirements, requirements ;) - Delta Cpt dopel 2008-07-21 00:58:58
    - doh! - Alpha Tr chiken 2008-07-21 01:08:43
      - Not bad... - Gamma Tr The Digital Poet 2008-07-23 01:37:50
        RE: Not bad... - Beta Tr chiken 2008-07-28 06:39:41
        Nice feed back - Delta Cpt dopel 2008-07-23 15:54:32
      - RE: doh! - Gamma Tr Chudik 2008-07-21 07:36:36
        arr - Gamma Tr Chudik 2008-07-21 07:38:52

Guest:
Subject:
Message:	On 2008-07-21 00:54:35, chiken wrote >The "ignore formatting and punctucations" threw me off for a minute and required me to write an extra function , but all in all it was a good refresher. > > >// code start >import java.io.BufferedReader; >import java.io.FileNotFoundException; >import java.io.FileReader; >import java.io.IOException; > >import java.lang.Character; >public class p3 { > > /** > * @param args > * @throws IOException > / > public static void main(String[] args) throws IOException > { > > String str; > boolean b = false; > > BufferedReader in = new BufferedReader(new FileReader("somefile.txt")); > while ((str = in.readLine()) != null) > { > b = isPalindrome(removeFormatting(str)); > if(b) > { > System.out.println(str); > } > > } > > in.close(); > > } > > public static String removeFormatting(String s) > { > String copy =""; > for(int pos = 0; pos<=s.length()-1; pos++) > { > if(Character.isLetter(s.charAt(pos))) > copy += s.charAt(pos); > } > return copy; > } > > public static String reverseWord(String s) > { > String copyR = ""; > > for(int pos = s.length()-1; pos>=0; pos--) { > copyR += s.charAt(pos); > } > return copyR; > } > > public static boolean isPalindrome(String s) > { > boolean b = false; > int i = 0; > > String reversedWord; > reversedWord= reverseWord(s); > // System.out.println(reversedWord); > > if (s.equalsIgnoreCase(reversedWord)) > { > b = true; > } > return b; > > > } > >} > >// code end > > >and the output matches your output. > > >Next, i'll do it in scheme( for fun ) and maybe* prolog. > >
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