All Questions
Tagged with java programming-practices
24 questions
283
votes
6
answers
168k
views
Choosing between Single or multiple projects in a git repository?
In a git environment, where we have modularized most projects, we're facing the one project per repository or multiple projects per repository design issue. Let's consider a modularized project:
...
- 3,017
22
votes
6
answers
13k
views
Efficient try / catch block usage?
Should catch blocks be used for writing logic i.e. handle flow control etc? Or just for throwing exceptions? Does it effect efficiency or maintainability of code?
What are the side effects (if there ...
- 323
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
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
17
votes
3
answers
43k
views
How to test the data access layer?
I have a DAO method that utilizes Spring for JDBC access. It calculates a seller's success rate of selling an item.
Here is the code:
public BigDecimal getSellingSuccessRate(long seller_id) {
...
- 273
46
votes
6
answers
7k
views
How necessary is it to follow defensive programming practices for code that will never be made publicly available?
I'm writing a Java implementation of a card game, so I created a special type of Collection I'm calling a Zone. All modification methods of Java's Collection are unsupported, but there's a method in ...
- 1,754
10
votes
4
answers
28k
views
Replacement for instanceof Java?
So I'm fairly new to programming in the real world (outside of academic projects) and have come across lots of posts saying that using instanceof is a bad thing to use to determine what class a ...
- 211
87
votes
10
answers
111k
views
How many lines per class is too many in Java? [closed]
In your experience, what is a useful rule of thumb for how many lines of code are too many for one class in Java?
To be clear, I know that number of lines is not even close to the real standard to ...
- 1,672
84
votes
8
answers
73k
views
Is modifying an incoming parameter an antipattern? [closed]
I am programming in Java, and I always make converters sort of like this:
public OtherObject MyObject2OtherObject(MyObject mo){
... Do the conversion
return otherObject;
}
At the new ...
- 1,439
49
votes
7
answers
48k
views
Is it a bad practice to have an interface to define constants?
I am writing a set of junit test classes in Java.
There are several constants, for example strings that I will need in different test classes.
I am thinking about an interface that defines them and ...
- 932
27
votes
6
answers
34k
views
Is it a bad habit to (over)use reflection?
Is it a good practice to use reflection if greatly reduces the quantity of boilerplate code?
Basically there is a trade-off between performance and maybe readability on one side and abstraction/...
- 10.5k
11
votes
3
answers
12k
views
When comparing a string variable to a string literal with .equals(), is there a standard practice for the order of items? [closed]
There are benefits to each and I understand the differences, but what is considered best / standard practice? And why?
For example :
"myString".equals(myStringVar)
Avoids a potential NPE and does ...
- 1,356
0
votes
5
answers
2k
views
Do I have to write a lot of boilerplate code if I keep working using Java? [closed]
I'm working for a company writing ERP applications. My problem is that I have to write tons of boilerplate code. I came up with ideas to automatize/prevent the drudgery but only some of them were ...
- 1,190
21
votes
9
answers
3k
views
How to teach Exception Handling for New Programmers? [closed]
How do you go about teaching Exception Handling to Programmers. All other things are taught easily - Data Structures, ASP.NET, WinForms, WPF, WCF - you name it, everything can be taught easily.
With ...
- 2,258