I'm stuck on these - can someone help

Question

I'm lost, no idea where to go from here

com/teamtreehouse/Main.java

// After you've completed the TODOs locally paste Main.java here

com/teamtreehouse/Prompter.java

// After you've completed the TODOs locally paste Prompter.java here

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

Answer 1 · 2016-02-10T14:32:40Z

February 10, 2016 2:32pm

So in this challenge it is assuming you are working locally in an IDE or even text editor of sorts. Though you can totally write it out in the different tabs for each file in the challenge itself it would be more ideal to do it in an IDE so you can see the runtime errors.

He is wanting you to turn the pseudocode into actual working code. You can rewatch the video titled "Teamwork". Craig walks through these files so you can see a lot of the code he wrote. Your code will look similar to what he has in there, with the exception of the differences he may have that is listed in the psuedocode file.

This challenge isnt just 1 simple answer and you are done. You will need to complete each step of the pseudocode then submit. Be sure if you work locally in an IDE, you name your files the same. The challenge will be looking for the same Class names.

And finally, once you get some beginning code together and start working on the logic of lets say the prompter class, if you get stuck come back here and post your code and we can work out the bugs together or even how you should go about the logic. You will learn MUCH MORE the more you are able to do yourself from start to finish.

You will want to start with a Main class with a public static void main(String[] args) method , that will be your codes start point.

Answer 2 · 2016-02-10T22:35:16Z

February 10, 2016 10:35pm

Thank you, sometimes I'm a little confused by what they are asking for. So I need to actually write the code to implement a solution for the TODO's.

Answer 3 · 2016-02-11T20:20:19Z

February 11, 2016 8:20pm

Chris,

Am I to write the code from scratch or insert the code in the exiting Main, Template & Prompter files? I would assume I am to insert the code but his pseudo code has me a bit confused as it a bit vague on how and where it matches up to the TODO(s) in the code.

Answer 4 · 2016-02-13T00:55:53Z

February 13, 2016 12:55am

I get the following results when running my code in treehouse which I cannot duplicate in my IDE:

Enter Template: Enter Substitute for first prompt: Enter Substitute for second prompt: Censored Word: dork not allowed. Re-Enter Censored Word: dweeb not allowed. Re-Enter Your TreeStory:

Testing PASS_1 and then PASS_2

The relevant code in Prompter.java is:

        public String promptForWord(String variable) throws IOException{
        String userInput = null;
        System.out.printf("Enter Substitute for %s: %n",variable);
        userInput = mReader.readLine();

        while (mCensoredWords.contains(userInput)) {
                System.out.println("Censored Word: "+userInput+ " not allowed.  Re-Enter");
                userInput = mReader.readLine();
        }
        return userInput;
   }

My Full Code is:

Main.java

public class Main {

    public static void main(String[] args) {
        Prompter promptR = new Prompter();
        String story = null;

        try {
            story = promptR.newTemplate();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Template tmpl = new Template(story);
        promptR.run(tmpl);
    }
}

Prompter.java

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

    public String newTemplate() throws IOException{
        String newTmpl;

        System.out.println("Enter Template: ");
        newTmpl = mReader.readLine();

        return newTmpl;
    }

    public List<String> promptForWords(Template tmpl) throws IOException {
        List<String> words = new ArrayList<String>();

        for (String template : tmpl.getPlaceHolders()) {

            String word = promptForWord(template);
            words.add(word);
        }
        return words;
    }

    public String promptForWord(String variable) throws IOException{
        String userInput = null;
        System.out.printf("Enter Substitute for %s: %n",variable);
        userInput = mReader.readLine();

        while (mCensoredWords.contains(userInput)) {
                System.out.println("Censored Word: "+userInput+ " not allowed.  Re-Enter");
                userInput = mReader.readLine();
        }
        return userInput;
   } 
}

I don't understand how these two words are slipping past my while block.

Answer 5 · 2016-02-13T03:16:04Z

February 13, 2016 3:16am

Okay, I figured out if you enter censored words multiple times you will overload the buffer and the invalid words will get by the while statement. I fixed this by importing the Scanner class and used this instead, now I am getting the following error: Bummer! java.util.NoSuchElementException (Look around Scanner.java line 862)

I guess the solution is to build a parser on the input from readLine

I'll do that next. I think this challenge should have had clearer instructions. Regardless of what "situation" the instructor is trying to demonstrate, he is not a work associate and available for clarification, perhaps he could be more clear and a little less clever.

Answer 6 · 2016-02-13T05:17:38Z

February 13, 2016 5:17am

Ok, I did a split on my user input and assigned the output to a String array then "tested" the first ('0') element. This worked and I am done - thanks everyone for your help.

Answer 7 · 2016-07-08T23:46:19Z

July 8, 2016 11:46pm

Hey , i am confused about why it gives null pointer exception with :

 BufferedReader mReader = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Write your story !!");
        String story = null;
        try {
            story = mReader.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }

used instead of :

Prompter promptR = new Prompter();
        String story = null;

        try {
            story = promptR.newTemplate();
        } catch (IOException e) {
            e.printStackTrace();
        }

in Main.java

Answer 8 · 2016-07-10T23:24:56Z

July 10, 2016 11:24pm

hey Chris , that newTemplate() is the same one that John Miller used in his Prompter.java class

Answer 9 · 2016-07-13T04:10:16Z

July 13, 2016 4:10am

Hey Ashraf Belferd,

I no longer have any code I wrote from when I did this series nor do I have the time right now to go through the videos to get each piece.

Though on Treehouse, if you start a java workspace. You can copy your code into their respective Class files then share that workspace and then I can see and run the code through the workspace.

Or

You can copy the Class code into blocks on here, though it may be better to start a new Post, if you are going to post all your classes. Because you could be having a completely different issue. :)

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I'm stuck on these - can someone help

9 Answers

Chris Howell

Chris Howell

John Miller

John Miller

Chris Howell

Chris Howell

John Miller

John Miller

Ben Morse

Ben Morse

Chris Howell

Chris Howell

John Miller

John Miller

John Miller

John Miller

John Miller

John Miller

Chris Howell

Chris Howell

Ashraf Belferd

Ashraf Belferd

Chris Howell

Chris Howell

Ashraf Belferd

Ashraf Belferd

Chris Howell

Chris Howell