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Java Local Development Environments Advanced Tooling Finishing TreeStory

how can i solve this problem. i got unreported exception ioexception must be caught or declare

here is my main method:

How can i solve this problem? Regard, Hadrien

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

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

public class Main {

    public static void main(String[] args) throws IOException {
          // write your code here

        String story = "Thanks __name__ for helping me out.  You are really a __adjective__ __noun__ and I owe you a __noun__.";
        Template tmpl = new Template(story);
        Prompter prompter = new Prompter();

        //prompter.run(tmpl);
        List<String> fakeResults = prompter.promptForWords(tmpl);

        String results = tmpl.render(fakeResults);
        System.out.printf("Your TreeStory:%n%n%s", results);

    }
}
com/teamtreehouse/Prompter.java
package com.teamtreehouse;

import java.io.*;
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() {
        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(Template tmpl) {
        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.println(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 {
      System.out.println(phrase);
      String answer = mReader.readLine();

      while(mCensoredWords.contains(answer)){
        System.out.println("Answer is censored, try again");
        answer = mReader.readLine();
      }
      return answer;
    }
}
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

Yanuar Prakoso
Yanuar Prakoso
15,196 Points

Hi Hadrien

Craig gave you the mystery of a lifetime here I guess. You need to pay more attention to the pseudo-test page:

  1. It require you to prompt to the user their own story using the intended format like: name or adjective
  2. You need to catch IOException in Main class but to do this you need something to throw it if necessary
  3. You should use Prompter.run(Template tmpl) method rather than processing it from Main.

okay for test number 1: Meaning you cannot use the the standard :

String story = "Thanks __name__ for helping me out.  You are really a __adjective__ __noun__ and I owe you a __noun__.";

you need to ask the users to build their own story. To do this you need to modify the Prompter class to include method that prompt user to build their story. Mine is like this:

 public String getStory() throws IOException{
        System.out.printf("type your story: ");
        String story = mReader.readLine();
        return story;
    }

Allright you have one method that willing to throw you IOException. Now you just need to catch it in Main class right? This next code also answer the pseudo-test number 2 and 3. This is how I code my main class:

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();
        try {
            String story =  prompter.getStory();
            //for test: "Thanks __name__ for helping me out.  You are really a __adjective__ __noun__ and I owe you a __noun__.";
            Template tmpl = new Template(story);
            prompter.run(tmpl);
        } catch (IOException e) {
            System.out.println("There was a problem prompting for story");
            e.printStackTrace();
        }

//        List<String> fakeResults = Arrays.asList("friend", "talented", "java programmer", "high five");

//        String results = tmpl.render(fakeResults);
//        System.out.printf("Your TreeStory:%n%n%s", results);

    }
}

If I run this in IntelliJ IDEA (with available template class of course) You will get:

/usr/lib/jvm/jdk1.8.0_151/bin/java ...
type your story: Thanks __name__ for helping out. You're really a __description__ person
please insert name: Hadrien
please insert description: great
Your Tree Story:

Thanks Hadrien for helping out. You're really a great person
Process finished with exit code 0

As you can see since I only build my Story with two place holders name and description thus I only had two question about those twos.

I hope this can help a little

Thank you very much :). Problem solved