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Results tagged with object-oriented
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user 109689
A methodology that enables a system to be modeled as a set of objects that can be controlled and manipulated in a modular manner
0
votes
Is it a good idea to have logic in the equals method that doesn't do exact matching?
As others have mentioned, the exact semantics of object equality are a part of the business domain's definition. In this case, I don't think it's reasonable to have a "general" object like Address (co …
- 4,954
2
votes
Where to put a method which uses only public interface of its class?
I would most certainly go with the first option.
The second option is nonsensical, the whole point of a class method is that it's not dependent on any particular instance of the class. A method that …
- 4,954
5
votes
What is a proper use of downcasting?
There is a trade-off between static and dynamically typed languages. Static typing gives the compiler a lot of information to be able to make rather strong guarantees about the safety of (parts of) pr …
- 4,954
4
votes
Accessing properties from embedded objects as attributes of container class
This is one way of mitigating violations of law of Demeter. I would provide caution on two things:
When you assign the subattributes of A and B to attributes, you're taking a snapshot in time. Futher …
- 4,954
0
votes
Is "Parent x=new Child();" instead of "Child x=new Child();" a bad practice if we can use th...
I would suggest always returning or storing variables as the most specific type, but accepting parameters as the broadest types.
E.g.
<K, V> LinkedHashMap<K, V> keyValuePairsToMap(List<K> keys, List …
- 4,954
1
vote
In OOP, isn't the 'protected' keyword required?
You mentioned Swift explicitly, so I'll answer about why Swift doesn't have protected.
Unlike many other languages, Swift lets you write "extensions" to other types (classes, structs, enums and proto …
- 4,954
0
votes
Is it a bad idea have make a class method that is passed class variables?
This is a classic "C with classes" approach to C++. In reality, this isn't what any seasoned C++ programmer would write. For one, using raw C arrays is pretty much universally discouraged, unless you' …
- 4,954
0
votes
2
answers
4k
views
Unit testing private methods
preface: I know this topic has been asked about a lot on here in the past. Hopefully I will make it clear that I've read a fair amount of the questions/answers on the topic, and other literature, too. …
- 4,954