What is code refactoring ?

Answer 1

it's all about improving the code without changing it's original behavior.
"Refactoring is the process of changing a software system in such a way that it does not alter the external behavior of the code yet improves its internal structure"
u can find more details/definitions on internet.

Answer 2

@eranga you answered it very well but its all theoretical.
Refactoring help you in:
1) Changing variable names, function names without affecting the code execution.
2) Changing package names, file names, storage locations, databases without affecting the code execution.
3) Deleting irrelevant files, lines of code in a way that program execution not get affected.
4) Moving data between multiple files in a software project securely.
and many more....
Happy Coding....😊

Answer 3

@sandip Well explained.