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Java Java Basics Perfecting the Prototype Looping until the value passes

Michael LaCroix
Michael LaCroix
5,828 Points

Error in code but no indication of where

There's an error in the code but I can't figure out where. I also don't understand the hint to declare the who variable outside the do loop. I don't see what that's necessary. It only happens once inside the loops and there's no repetition.

/*  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.


String who;
do {

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

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

// Person B responds:
console.printf("%s who?\n", who);
isInvalidWord = (who.equalsIgnoreCase("banana");

} while(who.equalsIgnoreCase("banana");


1 Answer

Hi Michael,

When you get syntax/compiler errors, click the Preview button for a list of errors.



After you fix these, there will be more errors, but I want to give you a chance to try and figure it out from here. If after trying and you still need help, don't hesitate to ask. Myself or someone else can help guide you in the right direction.