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I still don't see a print statement in the waitForChange() method before the while statement.

while(!changed);
Note: the ; after the ) ends the while statement. None of the following statements...

Ok, that formatting looks a lot better.
I see two while loops that don't have print statements before, inside and and after them to show when and where they are executing.
Be sure to add print...

That's some better, but still the indentations for the statements are missing. The statements should not all start in the first column. Proper indentation makes the code easier to read and...

Please post the code wrapped in code tags so it can be copied and used for testing.

It should look like this:

// this is where your code should be

Please explain what happens. If there are error messages, copy the full text and paste it here.

Please edit your post and wrap your code with code tags:



**YOUR CODE GOES HERE**


to get...