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I am developing a software using JavaFX. It is a desktop application. I am new to MVC, and also JavaFX; But learn some details by googling. I follow the steps here, to learn about JavaFX and also MVC. I know that in MVC, Model is a POJO, View is visualization, and controller acts on both, accept input and convert to commands for view and model. The model can also have logic to update the controller. We also for each view, should have a controller.( view-controllers) But I have some question; Why in the tutorial , We create both PersonEditDialog and PersonOverview stage in the mainApp? I mean this :

In this JavaFX tutorial, address book application creation suggested. Registered person could be deleted, however before deleting, person must be selected in table view.

There will be an ArrayIndexOutOfBoundsException because it could not remove a person item at index -1. The index -1 was returned by getSelectedIndex() - which means that there was no selection.

To ignore such an error is not very nice, of course. We should let the user know that he/she must select a person before deleting. (Even better would be if we disabled the button so that the user doesn’t even have the chance to do something wrong.)

Author is totally correct about "Even better would be if we disabled the button ...", however he selected the first way. I suppose, manipulation of the button state is the essential skill for JavaFX application development, so I tried to implement the better solution.

Of course, we can do it by way like this:

I have very simple window for changing password from javafx dialog collection - i use custom dialog example to build it (http://code.makery.ch/blog/javafx-dialogs-official/). Questions are bolded in below code:

I use JavaFx with property binding. I got a object 'Person' with the properties 'name' and age. These objects are stored in a ObservableList.

The properties are bound to labels on the gui. When I change the person in the ListBox the data also change on the right hand side.

GUI with person list:

And now it comes to my problem. I want to disply all persons on one window, like the next picture shows.

GUI with multiple persons on one view:

How can I handle this. I thought about HBox but the binding doesn't work.

FYI: Here you can find the tutorial I used. https://code.makery.ch/library/javafx-tutorial/part1/

I am now doing a simple sudoku game by JavaFX. And now I met some difficulty on dialog. I had create two scene, the menu scene contain only "new game" and "continue" button, main scene contain sudoku game. In the main scene I had created a check button to check if the gamer's answer is correct, where if it is incorrect then show a dialog like this img here and when it's correct,it might like this img here.

Then I found that CONFIRMATION ALERT is very similar. All I need to change is to the button's text and it's action,while when click retry to back to game scene and click quit to back to the main scene.

Now I know how to set action for the button in alert box, but i had some new question for that, I have no idea how to call the ventHandler in the statement.

Here is my code for two alert box

(source code from https://code.makery.ch/blog/javafx-dialogs-official/)

I am currently working on my JavaFX ZOO project and I have a problem. I am showing all of my records in a TableView and one of the columns contains a delete button. It all works perfectly, but I want to have an alert box showing up after clicking that delete button, just for safety.

So my delete button class looks like this:

I have a javafx TableView and I want to know when the sort order of a column changes. I added a listener to the getSortOrder method. However, it only fires when I sort ascending, and never when I sort descending. To test this I used this example code Does anyone have an idea why this doesn't fire? Do I need to add sth else?

The data in the table is in a SortedList and I added the listener as follows:

personTable.getSortOrder().addListener(this::onColumnSortOrderChanged);

I did some research on TableView's Filtering and Pagination separately.

Filtering : this post helped me as my need
Pagination : this, this post helped me also

I want to combine them together like so:

In Details --------------
I tried to make the pagination functionality first and it worked,
secondly, when i would start typing to the TextField filter functionality will match/filter the data from ObservableList, then rearrange the pagination according to the matched data size and show them through the table like the Datatable's search and pagination does and that's what i wanted, but i failed

My Code ...

PersonTableController.java

Following an example on : http://code.makery.ch/blog/javafx-8-event-handling-examples/ I have made a basic GUI involving a combobox. When Running my program however none of the items are being added to the combobox what so ever. I would very much appreciate it if you could point out my mistakes as to why it may not be adding the items to the combobox. Here is a ZIP file of my project: https://www.dropbox.com/home/Project-JavaFX All thanks in advance!

Main.java: