Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Basics Perfecting the Prototype Looping until the value passes

how did you tackle this one

We want to move that prompting code into a do while loop. Wrap the code into a do while code block and check in the while condition to see if who is "banana" so that the loop continues

KnockKnock.java
/*  So the age old knock knock joke goes like this:

    Person A:  Knock Knock.
    Person B:  Who's there?
    Person A:  Banana
    Person B:  Banana who?
    ...as long as Person A has answered Banana the above repeats endlessly
    ...assuming the person answers Orange we'd see
    Person B:  Orange who?
    ...and then the punchline.
    Person A:  Orange you glad I didn't say Banana again?
    (It's a really bad joke that makes it sound like "Aren't you glad I didn't say Banana again?")

    Let's just assume the only two words passed in from the console from Person B are either banana or orange.
*/

// ====BEGIN PROMPTING CODE====

// Person A asks:
console.printf("Knock Knock.\n");

// Person B asks and Person A's response is stored in the String who:
String who;
do {
String who = console.readLine("Who's there?  ");

// Person B responds:
  console.printf("%s who?\n", who);}

// ==== END PROMPTING CODE ====

2 Answers

Having the same issue. Let me know if you figure it out. ^_^

Sorry for leaving that as an answer, rather than a comment. I'm still getting used to this. Jonathon posted an answer on my thread that might be of help to you:

*After where the comment reads "Begin prompting code", put do{

It will say "knock, knock", "who's there" prompt, use the prompt to say "(prompt) who." Then it needs to repeat. Before "end prompting code", put your }while(who=="banana")*

its ok i managed to do it.

Okie Dokie