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Java Local Development Environments Advanced Tooling Finishing TreeStory

Peter Lange
Peter Lange
13,298 Points

I am getting a compiler error when I run the code on the site, but not on Intellij IDEA on my local PC.

JavaTester.java:77: error: unreported exception IOException; must be caught or declared to be thrown Main.main(null);

Above is the error I'm getting. I could use some guidance as to how I resolve it.

com/teamtreehouse/Main.java
package com.teamtreehouse;

import java.io.IOException;

public class Main {


    public static void main(String[] args) throws IOException {
        Prompter prompt = new Prompter();
        String story = prompt.promptForStory();
        Template tmpl = new Template(story);
        prompt.run(tmpl);


    }
}
com/teamtreehouse/Prompter.java
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;


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

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

    private void loadCensoredWords() throws IOException {
        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(Template tmpl) throws IOException {
        List<String> results = null;
        try {
            results = promptForWords(tmpl);
        } catch (IOException e) {
            System.out.println("There was a problem prompting for words");
            e.printStackTrace();
            System.exit(0);
        }
        System.out.printf("Your TreeStory:%n%n%s", tmpl.render(results));
    }

    /**
     * Prompts user for each of the blanks
     *
     * @param tmpl The compiled template
     * @return
     * @throws IOException
     */
    public List<String> promptForWords(Template tmpl) throws IOException {
        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 {
        boolean censured;
        String entry;
        do {
            System.out.println("Enter a " + phrase);
            entry = mReader.readLine();
            censured = false;
            if (mCensoredWords.contains(entry.trim().toLowerCase())) {
                censured = true;
                System.out.println("No naughty language, please!");
            }
        } while (censured);

        return entry;
    }

    public String promptForStory() throws IOException {
        String story = null;
        try {
            System.out.println("Please provide a story with two underscores __ to denote key words.");
            story = mReader.readLine();

        } catch (IOException e) {
            System.out.println("There was a problem prompting for story");
            e.printStackTrace();
            System.exit(0);
        }
        return story;
    }

}
pseudo-tests.md
#  This is essentially what I am testing 
1.  The user is prompted for a new string template (the one with the double underscores in it).

  a. The prompter class has a new method that prompts for the story template, and that method is called.

2.  The user is then prompted for each word that has been double underscored.

   a. The answer is checked to see if it is contained in the censored words.
      User is continually prompted until they enter a valid word

3.  The user is presented with the completed story

2 Answers

Anders Björkland
Anders Björkland
7,481 Points

Hi!
I'm sorry, I don't know what's going on there. However, you can replace your throws IOException in main with a try-catch-block instead.

Peter Lange
Peter Lange
13,298 Points

I'll give that a shot - I know I've probably botched the exception catching, so I'll probably just recreate all my exception handling from scratch and see what I missed.

Thanks again!