Understanding the 'finally' block

Question

I\'ve written seven test cases for understanding the behavior of the finally block. What is the logic behind how finally works?

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Answer 1

builder = null and builder.append("+1") are working. It's just that they're not affecting what you're returning. The function returns what the return statement has, regardless of what happens afterward.

The reason there is a difference is because builder is passed by reference. builder=null changes the local copy of builder. builder.append("+1") affects the copy held by the parent.