I have a problem with some code I used from the book I'm currently using. Introduction to Java Programming and Data Structures by Y. Daniel Liang. I like the book it's just what I needed to relearn Java
That typo is d*mn*d difficult to see. I am surprised your IDE didn't give you more hints about it. Go back to the original code and look for red marks to the left of the line. Hover your mouse on those red marks and you might get hints about how to correct the problem.
To find different spellings, use the IDE's find/search function for the misspelled name. You will see that the search skips over the line where the spelling is different.
With a correct spelling, search will find the line where the variable is declared and all the lines where it is used.
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