badcode.java

/**
 * A list of words.
 */
class WordList {

    int maxCapacity = 1024;
    String[] words;

    /**
     * Load the words
     */
    public WordList(String fileName) {
        File file = new File(fileName);

        InputStream input = new FileInputStream(file);
        Reader reader = new InputStreamReader(input);
        BufferedReader bufferedReader = new BufferedReader(reader);

        String line = null;
        int i = 0;
        words = new String[maxCapacity];

        while (true) {
            try {
                line = bufferedReader.readLine();

                if (line == null) {
                    break;
                }

                words[i++] = line;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * Check if the word is in the list
     */
    public boolean contains(String word) {
        boolean result = false;

        for (int i = 0; i < maxCapacity; i++) {
            if (word == words[i]) {
                result = true;
            }
        }

        return result;
    }

    /**
     * Remove the word from the list
     */
    public boolean remove(String word) {
        for (int i = 0; i < maxCapacity; i++) {
            if (word == words[i]) {
                words[i] = null;
            }
        }
    }

    /**
     * Replace a word with another one
     */
    public boolean replace(String original, String replacement) {
        for (int i = 0; i < maxCapacity; i++) {
            if (original == words[i]) {
                words[i] = replacement;
            }
        }
    }
}