UVA - 10945 - Mother bear

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        StringBuffer sb = new StringBuffer("");
        String m;
        while(true){
            m=br.readLine();
            if("DONE".equals(m)){
                break;
            }
            m=m.toLowerCase();
            StringBuilder temp=new StringBuilder("");
            for(int i=0;i<m.length();i++){
                if(m.charAt(i)>96 && m.charAt(i)<123){
                    temp.append(m.charAt(i));
                }
            }
            if(pali(temp.toString()))
                sb.append("You won't be eaten!\n");
            else
                sb.append("Uh oh..\n");
        }
        System.out.print(sb);
    }
   
    static boolean pali(String s) {
        for (int i = 0, j = s.length() - 1; i < s.length() / 2; i++, j--) {
            if (s.charAt(i) != s.charAt(j)) {
                return false;
            }
        }
        return true;
    }
}