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Java Java Basics Perfecting the Prototype Looping until the value passes

heinz meza
heinz meza
4,788 Points

How can I solve this? any hint please..is a bit challenging.

help please...!

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.equalsIgnoreCase("banana");
boolean equalsIgnoreCase;
do{
// Person A asks:
console.printf("Knock Knock.\n");

// Person B asks and Person A's response is stored in the String who:
String who = console.readLine("Who's there?  ");
  if (equalsIgnoreCase) {
    // Person B responds:
console.printf("%s who?\n", who);
  }
}

// ==== END PROMPTING CODE ====
Jorge Flores
Jorge Flores
Courses Plus Student 7,863 Points

Hi Heinz, i suugest you wrap the 3 code lines in the do while loop, and just add ask if the variable who is equal ignoring case to "banana", also remember to declare String who out of the loop in order for the condition to acknowledge the variable. (do not declare the variable twice, if you declared it outside the loop, inside you will online give a value to it, you will only have who=who = console.readLine("Who's there? "); )

1 Answer

Lisa Taylor
Lisa Taylor
814 Points
String who;
boolean isBanana;
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?  ");  //gets response from user
  isBanana = (who.equalsIgnoreCase("banana")); //if it is banana, then value returned is true, else it is false
  if (isBanana) //if it is banana (true) then code within the brackets prints
  {
    // Person B responds:
    console.printf("%s who?\n", who);
  }
}
while (isBanana); //while this is true, the code within the do loop will run