All Questions
Tagged with programming-practices object-oriented
88 questions
276
votes
14
answers
125k
views
Should we avoid object creation in Java?
I was told by a colleague that in Java object creation is the most expensive operation you could perform. So I can only conclude to create as few objects as possible.
This seems somewhat to defeat ...
- 2,657
65
votes
10
answers
36k
views
Do you generally send objects or their member variables into functions?
Which is generally accepted practice between these two cases:
function insertIntoDatabase(Account account, Otherthing thing) {
database.insertMethod(account.getId(), thing.getId(), thing....
- 3,028
59
votes
9
answers
49k
views
Should the methods of a class call its own getters and setters?
Where I work I see lots of classes that do things like this:
public class ClassThatCallsItsOwnGettersAndSetters {
private String field;
public String getField() {
return field;
}...
- 6,824
56
votes
3
answers
74k
views
Which is a better practice - helper methods as instance or static?
This question is subjective but I was just curious how most programmers approach this. The sample below is in pseudo-C# but this should apply to Java, C++, and other OOP languages as well.
Anyway, ...
- 663
50
votes
5
answers
62k
views
When and why to use Nested Classes?
Using Object Oriented Programming we have the power to create a class inside a class (a nested class), but I have never created a nested class in my 4 years of coding experience.
What are nested ...
- 683
49
votes
1
answer
8k
views
Why do programmers use `Acme` as a package, namespace or directory name [closed]
This may or may not be a silly question, but I really would like to know the answer to something which has been bothering me for a while.
I quite often see programming examples/conventions where the ...
- 1,067
38
votes
5
answers
9k
views
When should I extend a Java Swing class?
My current understanding of Inheritance implementation is that one should only extend a class if an IS-A relation is present. If the parent class can further have more specific child types with ...
- 491
38
votes
7
answers
2k
views
How can I get my progress reviewed as a solo junior developer [closed]
I am currently working for a 2 person company, as the solo primary developer. My boss gets the clients, mocks up some png design templates and hands them over to me.
This system has been working fine ...
- 590
36
votes
13
answers
5k
views
Why should a class be anything other than "abstract" or "final/sealed"?
After 10+ years of java/c# programming, I find myself creating either:
abstract classes: contract not meant to be instantiated as-is.
final/sealed classes: implementation not meant to serve as base ...
- 477
36
votes
5
answers
68k
views
Is it a good practice to create a ClassCollection of another Class?
Lets says I have a Carclass:
public class Car
{
public string Engine { get; set; }
public string Seat { get; set; }
public string Tires { get; set; }
}
Lets say we're making a system ...
- 535
25
votes
2
answers
18k
views
Exceptions in DDD
I'm learning DDD and I'm thinking about throwing exceptions in certain situations. I understand that an object can not enter to a bad state so here the exceptions are fine, but in many examples ...
- 267
21
votes
5
answers
2k
views
How to avoid giant glue methods?
In my current job, I've been tasked with cleaning up old code a few times. Often the code is a labyrinth and the data behind it is even more tangled. I find myself combing out things into nice, neat,...
- 321
17
votes
6
answers
23k
views
Maximum nesting for loops and conditionals? [duplicate]
I've written some code that has some fairly deep nests (one time, I wrote something that was a conditional check inside a forloop inside a conditional check inside a forloop inside a forloop).
Is ...
- 281
16
votes
3
answers
4k
views
When is it okay to use Parallel Arrays?
I've been running into code (new code) that uses what I call 'Parallel Arrays' or Lists. Meaning there are 2 arrays that contain related data and are linked by their position (index) in the array.
I ...
- 273
16
votes
3
answers
51k
views
Should we add constructors to structs?
We often use c++ structs to define data structure as opposed to class which can be a complete module with member methods. Now deep down, we know they both are the same (loosely speaking).
The fact ...
- 397