Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
Principles of OOP programming ? |
(1) DRY (2) SOLID DRY - In code and in Process. |
|
|
Examples of SRP (Single Responsibility Principle) ? |
Persistence, Validation, Notification, Error Handling, Logging, Class Selection/Construction, Formatting, Parsing , Mapping, Calling Web Services.
Lack of SRP increases Coupling. |
|
|
What is Open Closed Principle ? |
Open for extension, closed for modification. Use DI. Refactoring: Extract interface/Apply strategy pattern, Parameterize methods, Form template methods. |
|
|
What is Liskov Substitution Principle ? |
If you get a base type, but you still have to check the actual type of object, it's breaking LSP. Subtypes must be substitutible for their base class. Refactoring: Collapse Hierarchy, Pull up/down methods and fields. |
|
|
Is not Functional style programming just like imperative style ? |
No. Imperative styles is like Telling how to do it. Functional is like what to do. e.g. stream(2,3,4,5).boxed().collect(toMap(n->n, n-> 2*n)) |
