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Java

Onur Dursun
Onur Dursun
6,532 Points
Posted by Onur Dursun
Onur Dursun
6,532 Points

What is this onSale method?

Hello.

In the video titled "What not to test?" we are introduced to an interface created within the project, called Notifier. I did not quite get what do we need that interface for and how did we use it? Also, the interface consists of a method 'onSale'. I did not understand how do we need it?

One other thing is that when we override this 'onSale' method in our test class, why did we put return; statement inside braces? Isn't it already returns nothing(void) ?