Refactoring of a program means

Arestructuring the code to improve its internal design without changing its external behaviour
Badding new features to the program
Ctranslating the program into another programming language
Dremoving all the comments from the program

Correct answer: A

Explanation

Refactoring cleans up the structure of working code, for example by renaming, extracting methods or removing duplication, while the observable behaviour stays the same, which is usually checked by automated tests.

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Refactoring of a program means

Explanation

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