Exercise: remove TODO

// After you've completed the TODOs locally paste Main.java here
package com.teamtreehouse;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;

public class Main {

    public static void main(String[] args) {
    // write your code here
        Prompter prompter = new Prompter();
        prompter.run();
    }
}

// After you've completed the TODOs locally paste Prompter.java here
package com.teamtreehouse;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class Prompter {
    private BufferedReader mReader;
    private Set<String> mCensoredWords;

    private class MyTemplate {
        private String compiled;
        private List<String> placeHolders;


        protected MyTemplate (String story) {
            Pattern pattern = Pattern.compile("__([^__]+)__");
            Matcher matcher = pattern.matcher(story);
            while(matcher.find()){
                String found = matcher.group();
                placeHolders.add(found);
            }
            compiled = matcher.replaceAll("%s");
        }
        protected List<String> getPlaceHolders () {
            return placeHolders;
        }
        protected String getCompiled () {
            return  compiled;
        }
    }


    public Prompter() {
        mReader = new BufferedReader(new InputStreamReader(System.in));
        loadCensoredWords();
    }

    private void loadCensoredWords() {
        mCensoredWords = new HashSet<String>();
        Path file = Paths.get("resources", "censored_words.txt");
        List<String> words = null;
        try {
            words = Files.readAllLines(file);
        } catch (IOException e) {
            System.out.println("Couldn't load censored words");
            e.printStackTrace();
        }
        mCensoredWords.addAll(words);
    }

    public void run() {
        List<String> results = null;

        try {
            String story = mTemplate();
            results = promptForWords(story);
            System.out.printf("Your TreeStory:%n%n%s", String.format(new MyTemplate(story).getCompiled(), new MyTemplate(story).getPlaceHolders().toArray()));
        } catch (IOException e) {
            System.out.println("There was a problem prompting for words");
            e.printStackTrace();
            System.exit(0);
        }
    }



    public Set<String> getmCensoredWords() {
        return mCensoredWords;
    }


    public List<String> promptForWords(String story) throws IOException {
        MyTemplate tmpl = new MyTemplate(story);
        List<String> words = new ArrayList<String>();
        for (String phrase: tmpl.getPlaceHolders()) {
                String word = promptForWord(phrase);
                words.add(word);
            }
        return words;
    }


    /**
     * Prompts the user for the answer to the fill in the blank.  Value is guaranteed to be not in the censored words list.
     *
     * @param phrase The word that the user should be prompted.  eg: adjective, proper noun, name
     * @return What the user responded
     */
    public String promptForWord(String phrase) throws IOException, ClassCastException {
        String readString;
        do {
            System.out.printf("Please enter a %s %n", phrase);
            String readWord = mReader.readLine();
            readString =  readWord.trim().toLowerCase();
        } while (getmCensoredWords().contains(readString));
        return readString;
    }



    public String mTemplate() throws IOException {
        System.out.println("Please entry your story template");
        return  mReader.readLine().trim();
    }


}