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All components to be displayed inside a JavaFX application must be located inside a scene. The names for "stage" and "scene" are inspired by a theater. A stage can display multiple scenes, just like in a theater play. Stage Represents windows, top level container Many setter methods: setTitle (), setWidth () You can create multiple stages and use one or another. Scene Each stage has a scene Scene holds controls (buttons, labels, etc ) Pane You can put controls in Scenes directly, but we usually Panesfor better layout Examples: StackPane , BorderPane , HBox , VBox

package com.ibadmin.control.tablefilter; import java.util.Optional; import java.util.function.BiPredicate; import java.util.stream.Collectors; import javafx.beans.property.BooleanProperty; import javafx.beans.property.SimpleBooleanProperty; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.collections.transformation.FilteredList; import javafx.collections.transformation.SortedList; import javafx.scene.control.CheckBox; import javafx.scene.control.TableColumn; import javafx.scene.control.TableView; /**  * Applies a filtering control to a provided {@link TableView} instance. The filter will be applied immediately on construction, and can be  * made visible by right-clicking the desired column to filter on. <br>  * <br>  * <b>Features</b><br>  * -Convenient filter control holds a checklist of distinct items to include/exclude, much like an Excel filter.<br> ...

package com.ibadmin.control.tablefilter; import java.util.Optional; import java.util.function.BiPredicate; import java.util.stream.Collectors; import javafx.beans.property.BooleanProperty; import javafx.beans.property.SimpleBooleanProperty; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.collections.transformation.FilteredList; import javafx.collections.transformation.SortedList; import javafx.scene.control.CheckBox; import javafx.scene.control.TableColumn; import javafx.scene.control.TableView; /**  * Applies a filtering control to a provided {@link TableView} instance. The filter will be applied immediately on construction, and can be  * made visible by right-clicking the desired column to filter on. <br>  * <br>  * <b>Features</b><br>  * -Convenient filter control holds a checklist of distinct items to include/exclude, much like an Excel filter.<br> ...

Suppose your controller class is : class SettingController implemets Initializable{ @FXML Vbox settingsFXML; @Override   public void initialize(URL location, ResourceBundle resources) { } } And Here is your fxml : Setting.fxml : <VBox id="settingsFXML" fx:id="settingsFXML" xmlns="http://javafx.com/javafx/8.0.60" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ibadmin.settings.SettingsController "> </VBox> Note that : In fxml we write one attribute " fx:controller " to map contrller with fxml file. pass class path to this attribute. also Note that we assign id to this fxml as :"setitngsFXML" :we use this id as object in controller to use fxml components(not necessary ).

public class SettingsController implements  Initializable{  @Override   public void initialize(URL location, ResourceBundle resources) {     } } This is the way to write controller class in javafx But  remember some point about controller class in javafx - It is not necessary to extends Initialization interface to create controller class - But if you implements initialization interface then it is necessary to override initialize method as shown second way : public class SettingsController {   public void initialize() {     } } this is also a correct way to create controller class in jaavfx Note - method name should be initialize it is starting point of your controller class ex : public class SettingController { init(){ This is not a valid controller class } }