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Java Java Basics Perfecting the Prototype Looping until the value passes

Stuart Ryan
Stuart Ryan
2,886 Points
Posted by Stuart Ryan
Stuart Ryan
2,886 Points

need help on task 3 now.

I can't seem to get passed this task. any help much appreciated.

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
String response;
boolean isInvalidWord;
do {
  response = console.readLine("Do you understand do while loops?");
  isInvalidWord = (response.equalsIgnoreCase("yes"));

  if (isInvalidWord) {
    console.printf("Because you said" response, "you passed the test!");
  }
} while(isInvalidWord);

2 Answers

Grigorij Schleifer
Grigorij Schleifer
10,365 Points
Grigorij Schleifer
Grigorij Schleifer
10,365 Points

Hi Stuart,

you think waaaaaay to complicated. You don´t need a boolean here. You have everything you need in your code already :)

You will need a while loop condition that says: while users response is equals to "No" repeat asking etc ....

Use this line 

response.equalsIgnoreCase("yes")

for the while condition. After the User types "yes" the while conditionis is not true anymore and the compiler leaves the loop to print 

"Because you said yes you passed the test!"

So for the TASK3 you can use your code from the if loop. But don´t forget to replace responce through a String formatter %s the challenge wants you to use.

See here for more details:

https://teamtreehouse.com/community/i-keep-getting-a-compiler-error-and-i-cannot-figure-out-how-to-pass-this-final-challenge-please-help

Let me know if you need more help ....

Grigorij

Stuart Ryan
Stuart Ryan
2,886 Points
Stuart Ryan
Stuart Ryan
2,886 Points

Appreciate your help.

I've coped your answer from the link you sent me and it's worked.

i don't have any variables defined and the workspace marked it correct. I get it. For me it's great following along and these tasks are really test your understanding.

do{ response = console.readLine("Do you understand do while loops");

}while(response.equalsIgnoreCase("no"));

console.printf("Because you said %s, you passed the test!", response);

Putting this in English it says while "no", [print] "do you understand do while loops" else [print] Because you said %s, you passed the test!

I got caught up trying to adapt where the video went.

Grigorij Schleifer
Grigorij Schleifer
10,365 Points
Grigorij Schleifer
Grigorij Schleifer
10,365 Points

Hi there !

it should be:

while "no" or "No" ... go to the loop again and repeat the asking ,, while "yes" or "yes": leave the loop and go down to the next line !

You need to know that the compiler enters the while loop if the condition innside the parenthesid () is true and leaves it when the condition is false.

while(response.equalsIgnoreCase("no"));
// if the user types no ... the condition is true and the compiler stays in the loop and prints the asking sentence
// if the user types yes ... the condition is false ... the compiler leaves the loop and goes further down

Makes sense?