Question

Trying to write a program that asks the user if they want instructions. If the user enters maybe the console responds with “please enter a yes or no answer” and repeats the question.

I’m having difficulty listing the method parameters for the method askYesNoQuestion. Are the parameters simply String yes, String no? I am also stuck on how do I make the program repeat the question after someone enters maybe? Does my code look generally correct for what I’m trying to do?

import acm.program.*;



public class Instructions extends ConsoleProgram{

    public void run(){
        String answer  = readLine("Would you like instructions? : ")
        {
            if (answer.equals("maybe")) {
                println ("Please enter a yes or no answer.");  
            }
        }
    }   

    private boolean askYesNoQuestion(String yes, String no ){

        if (askYesNoQuestoin ("would you like instructions? "))
            if (answer.equals("yes")) {
                return yes;
            } else {
                if (answer.equals("no"))
                    return no;
            }
    }

Answer 1

Up to you how you do it, but really you are trying to convert a user’s string input to something a bit easier for Java to work with.

I’d suggest askYesNoQuestion() would take the question to ask and then return true for yes and false for no. If you really want to handle “maybe” then use and int (or better yet an enum) to handle the response.

boolean askYesNoQuestion(String question)
{
     while(true) {
     // print the question
     // get the answer
     // if answer.equals("yes") return true 
     // if answer.equals("no") return false
     // any other answer asks the question again
     }
     return false;
}

// call looks like
if (askYesNoQuestion("Do you want instructions?")) {
  // do instructions
}
// Do the rest of the app.
//