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Initialize class fields in constructor or at declaration?
I've been programming in C# and Java recently and I am curious where the best place is to initialize my class fields.
15 An...
Why doesn't RecyclerView have onItemClickListener()?
...
tl;dr 2016 Use RxJava and a PublishSubject to expose an Observable for the clicks.
public class ReactiveAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
String[] mDataset = { "Data", "In", "Adapter" };
private fina...
What is Data Transfer Object?
...neral Value Objects should be Immutable. Like Integer or String objects in Java. We can use them for transferring data between software layers. If the software layers or services running in different remote nodes like in a microservices environment or in a legacy Java Enterprise App. We must make al...
private[this] vs private
...Scala I see such feature as object-private variable. From my not very rich Java background I learnt to close everything (make it private) and open (provide accessors) if necessary. Scala introduces even more strict access modifier. Should I always use it by default? Or should I use it only in some s...
When should I use double or single quotes in JavaScript?
...nt when working with multiple languages where nearly all other lanuguages (Java, C, C++, ...) use double quotes for strings and single quotes for chars. I prefer to use the same quoting across the board and so stick with double quotes for JS. With years of touch typing the extra key to shift for dou...
How to use Morgan logger?
...estion. I think we associate logging with manual logging as we would do in Java with log4j (if you know java) where we instantiate a Logger and say log 'this'.
Then I dug in morgan code, turns out it is not that type of a logger, it is for automated logging of requests, responses and related data. ...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...lose itself by the use of a destructor no matter how we try and abuse it.
Java Like Finally
void someFunc()
{
DB db = new DB("DBDesciptionString");
try
{
// Use the db object.
}
finally
{
// Can not rely on finaliser.
// So we must explicitly cl...
Copy existing project with a new name in Android Studio
...oid Studio.
Packages will still be under the old project name.
That is the Java classes packages, application ID and everything else that was generated using the old package name.
We need to change that.
In the project view, select Android.
Open the java sub-directory and select the main package.
Th...
Generate colors between red and green for a power meter?
I'm writing a Java game and I want to implement a power meter for how hard you are going to shoot something.
19 Answers
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Are getters and setters poor design? Contradictory advice seen [duplicate]
I'm currently working on a simple game in Java with several different modes. I've extended a main Game class to put the main logic within the other classes. Despite this, the main game class is still pretty hefty.
...