@nimakro very nice, thanks!

@Sola don't let me overwhelm you, but I prefer to get reactive with RxJava. I maintain RxJavaFX and RxKotlinFX.

Oops, one second

@User uploaded a file: Untitled

That pushes each selected value through a stream, turns it into its

length

, and then prints it.

But just showing there are lots of styles

Including functional and reactive approaches too.

is it event drive?

@Sola yes, that's why I like it

so It means It will print the length everytime I selected?

Exactly.

wow, awesome.

And that is a simple example. You can merge, zip, and combine multiple event sources together too

also makes concurrency simple...

I'm confused about why have to

toObservable

?

@User uploaded a file: Untitled

^ That will calculate length on computational thread, and put it back on JavaFX thread

isn't

valueProperty

already implemented

Observable

@Sola

toObservable()

will turn a JavaFX Property into an

Observable

, which does all those cool stream mappings

@Sola This is a different

Observable

type, the RxJava one.

not the one from

java.util

.

ohoh , I see.

I wrote an entire eBook on Learning RxJava with JavaFX. Feel free to check it out if you like that style

wow, you guys are amazing!

@Sola we like to build cool stuff and share it : )

where should I put my initialize code once my view get ready (load data from file then put them into

ListView

etc.) ? I found that the

controller

is lazy constructed

@Sola Well there are different ways of doing that, one way could be to use a

Controller

and bind an observable-list to your listView and then load the file in the

init

block of your

Controller

and after you loaded the data you populate the observable list. Just make sure to run the loading in a separate task so the ui-thread is not blocked.

@User uploaded a file: Untitled

but Nield just told that the

list

seems should be put in

Model

object