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Java Java Basics Perfecting the Prototype Looping until the value passes

Alejandro Loja
Alejandro Loja
6,541 Points
Posted by Alejandro Loja
Alejandro Loja
6,541 Points

I have no idea what I have to do, I don't know what you want me to put in the while loop

help

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====
 String who;
// Person A asks:
do {
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:
}while (console.printf("%s who?\n", who));

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

1 Answer

Axel McCode
Axel McCode
13,869 Points
Axel McCode
Axel McCode
13,869 Points

So the challenge is to implement the code given into a do-while loop. That loop should keep asking the user to enter a string (this is the "do" part) until that string is "banana" (the "while" conditional). I used the following code for this challenge. The do-while loop will keep looping unless the string entered by the user is equal to "Banana". (I used .equalsIgnoreCase to test if the string variable is equal to "banana" while not being case sensitive.)

Hope this helps :) 

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

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

do{
    who = console.readLine("Who's there?  ");
}while(who.equalsIgnoreCase("Banana"));

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

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