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import java.io.*;
import java.util.*;

public class palindrome
{
 public static void main(String[] args)
  {

   String tstst = "MOM";
   String temp = "";

  for(int i = 0; i < tstst.length(); i++)
   {
    if((tstst.charAt(i)>= 'A') && (tstst.charAt(i)<= 'Z'))
     {
      temp = temp + tstst.charAt(i);
     } //end if statement
   } //enf for loop

  } //end main
} //end palindrome

public class palindrome 
{
public static void main(String[] args) { 
   String tstst = "MOM";
   System.out.println(isPalindrome(tstst));
} //end main 

public static bool isPalindrome(String s) {
   int i = 0, j = s.length()-1;
   for (; i < j; i++, j--)
      if (s.charAt(i) != s.charAt(j))
         return false;
   return true;
}
} //end palindrome

public class Palindrome
{
   public static void main(String[] args)
   {
      Palindrome pal = new Palindrome();
      System.out.println(pal.checkString("ANNA"));
   }

   public boolean checkString(String str)
   {
      str = str.trim();

      int middle = str.length() / 2 - 1;

      int counter = 1;

      boolean flag = true;

      if(str.length() % 2 != 0)
      {
         //Have to move the starting point back cuz we know that there's no point
         //in comparing a value (in this case "O") against itself.
         middle = middle - 1;
      }

      for(int i = middle; i >= 0; i--)
      {
         if(str.charAt(i) == str.charAt(i + counter))
         {
            counter+=2;
         }
         else
         {
            flag = false;
         }
      }

      if(flag)
      {
         return true;
      }
      else
      {
         return false;
      }
   }
}

public static void palindrome(String[] args)
 {

  String tstst = "MOM";
  String temp = "";
  String temp2 = "";

  for(int i = 0; i < tstst.length(); i++)
   {
    if((tstst.charAt(i)>= 'A') && (tstst.charAt(i)<= 'Z'))
     {
      temp = temp + tstst.charAt(i);
     }
   }

  for(int j = tstst.length(); j < 0; j--)
   {
    if((tstst.charAt(j)>= 'A') && (tstst.charAt(j)<= 'Z'))
     {
      temp2 = temp2 + tstst.charAt(j);
     }
   }

 temp.equals(temp2);

 } //end palindrome

  for(int j = tstst.length()-1; j >= 0; j--) 
   { 
    if((tstst.charAt(j)>= 'A') && (tstst.charAt(j)<= 'Z')) 
     { 
      temp2 = temp2 + tstst.charAt(j); 
     } 
   } 

 temp.equals(temp2); 

class IsPalindrome {

   public static void main(String args[])
   {
     System.out.println( "These should be palindromes: " );
    displayResult( "A" );
    displayResult( "Mom" );
    displayResult( "Hannah." );
    displayResult( "ABCDEDCBA." );
    displayResult( "A daffodil slid off Ada." );
    displayResult( "A Dan, a clan, a canal - Canada!" );
    displayResult( "A Toyota! Race fast, safe car. A Toyota." );
    System.out.println( "\nThese should not be palindromes: " );
    displayResult( "AB" );
    displayResult( "ABC" );
    displayResult( "ABCA" );
    displayResult( "ADOIA" );
  } // end test main

  public static void displayResult( String str )
  {
    System.out.println( str + ( ( isPalindrome( str ) ) ? " is " : " is not " ) + " a palindrome." );
  } // end displayResult


  public static boolean isPalindrome( String str )
  {
    str = str.toLowerCase();
    int begin = -1, end = str.length();
    do
    {


      do
      {
        begin++;
      } while( begin < str.length() - 1 && !Character.isLetter( str.charAt( begin ) ) );

      do
      {
        end--;
      } while( end > 0 && !Character.isLetter( str.charAt( end ) ) );

      if( str.charAt( begin ) != str.charAt( end ) )
          return false;


    } while( begin < end );

    return true;


  } // end isPlaindrome
} // end class

public static void palindrome(String[] args)
 {

  String tstst = "ABLE WAS I ERE I SAW ELBA";
  String temp = ""; //String holds tstst without spaces
  String temp2 = ""; //String holds tstst without spaces but in reverse order

    System.out.println(tstst); //Prints out value for tstst

    for(int i = 0; i <  tstst.length(); i++) //Takes out spaces from tstst
     {
      if((tstst.charAt(i)>= 'A') && (tstst.charAt(i)<= 'Z'))
       {
        temp = temp + tstst.charAt(i); //Stores no spaced words in new string
       }
     }

    for(int j = tstst.length()-1; j >= 0; j--) //Takes out spaces from tstst and arranges them reversed
     {
      if((tstst.charAt(j)>= 'A') && (tstst.charAt(j)<= 'Z'))
       {
        temp2 = temp2 + tstst.charAt(j); //Stores no spaced words in new string (reversed)
       }
     }

    if (temp.equals(temp2)) //Compares temp & temp2 to see if their equal to each other
     System.out.println("True");
    else
     System.out.println("False");
 } //end palindrome