This video demonstrates a logic error where the program runs to completion, but produces the wrong output. The process of identifying, finding, and fixing the error is modeled. The error stems from the incorrect use of a formula to control the parameters of the subString method. The code attempts to throw away occurrences of the strings “cat” and “dog” as they are counted – but makes a mistake in doing so. The code is analyzed, corrected, and tested.

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Needs to explain how the method parses the text. Is the text parser a java method?

I did like the overall discovery of the solution.