(UVA) Pesky Palindromes - Solution

Link to the problem: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=289

The solution below checks all the possible palindrome present in a given word, and it also checks if that palindrome was already considered. 


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

class Main {
    public void process() throws NumberFormatException, IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        
        String line = br.readLine();
        while (line != null) {
            HashSet<String> palindromes = new HashSet<>();
            for (int i = 0; i < line.length(); i++) {
                for (int j = i; j < line.length(); j++) {
                    String word = line.substring(i, j+1);
                    boolean palindrome = true;
                    for (int k = 0, l = word.length()-1; k < l; k++, l--) {
                        if (word.charAt(k) != word.charAt(l)) {
                            palindrome = false;
                            break;
                        }
                    }
                    if (palindrome) {
                        palindromes.add(word); // only add if it is a new word
                    }
                }
            } 
            
            System.out.println("The string '" + line + "' contains " + palindromes.size() + " palindromes.");            
            
            line = br.readLine();
        }
                       
        return;
    }
    
    public static void main(String[] args) throws NumberFormatException, IOException {
        Main m = new Main();
        m.process();
        
        System.exit(0);
    }
}

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