Qfyilyi

i using javafx and scene builder2.0.
i want to change the scene from mainmenu.fxml to koreanfood.fxml
i ran program. scene is appeared.
i clicked on. error occured.

main.java:

 package application;



    import javafx.application.Application;

    import javafx.fxml.FXMLLoader;

    import javafx.scene.Parent;

    import javafx.scene.Scene;

    import javafx.stage.Stage;





    public class Main extends Application {

        @Override

        public void start(Stage primaryStage) {

            try {

                Parent root=FXMLLoader.load(getClass().getResource("mainmenu.fxml"));

                primaryStage.setScene(new Scene(root));         

                primaryStage.setTitle("recipe");

                primaryStage.show();

    //          primaryStage.setResizable(false);

            } catch(Exception e) {

                e.printStackTrace();

            }

        }



        public static void main(String args) {

            launch(args);

        }

    }

mainmenu.fxml:

<?xml version="1.0" encoding="UTF-8"?>



<?import javafx.scene.text.*?>

<?import javafx.scene.control.*?>

<?import javafx.scene.image.*?>

<?import java.lang.*?>

<?import javafx.scene.layout.*?>

<?import javafx.scene.layout.AnchorPane?>



<AnchorPane prefHeight="600.0" prefWidth="800.0" style="-fx-background-color: yellow;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.Controller">

   <children>

      <GridPane hgap="30.0" layoutX="70.0" layoutY="200.0" prefHeight="320.0" prefWidth="682.0" vgap="30.0">

        <columnConstraints>

            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

        </columnConstraints>

        <rowConstraints>

          <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />

          <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />

        </rowConstraints>

         <children>

            <AnchorPane onMouseClicked="#clickmainmenu" prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;">

               <children>

                  <ImageView fitHeight="101.0" fitWidth="103.0" layoutX="27.0" layoutY="7.0" pickOnBounds="true" preserveRatio="true">

                     <image>

                        <Image url="@../../../../../2학년%202학기/오픈소스프로젝트/project/iconfinder_Food_C226_2427886.png" />

                     </image></ImageView>

                  <Label layoutX="54.0" layoutY="119.0" text="한식">

                     <font>

                        <Font size="21.0" />

                     </font></Label>

               </children>

            </AnchorPane>

            <AnchorPane prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="1">

               <children>

                  <Button layoutY="1.0" mnemonicParsing="false" onMouseClicked="#clickmainmenu" prefHeight="123.0" prefWidth="119.0" style="-fx-background-color: white;" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />

                  <ImageView fitHeight="86.0" fitWidth="85.0" layoutX="14.0" pickOnBounds="true" preserveRatio="true">

                     <image>

                        <Image url="@../../../../../2학년%202학기/오픈소스프로젝트/project/dim-sum.png" />

                     </image>

                  </ImageView>

                  <Label layoutX="37.0" layoutY="89.0" text="중식">

                     <font>

                        <Font size="20.0" />

                     </font>

                  </Label>

               </children>

            </AnchorPane>

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;" GridPane.columnIndex="2">

               <children>

                  <ImageView fitHeight="86.0" fitWidth="75.0" layoutX="21.0" pickOnBounds="true" preserveRatio="true" />

               </children>

            </AnchorPane>

            <AnchorPane prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="3" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;" GridPane.rowIndex="1" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="1" GridPane.rowIndex="1" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="2" GridPane.rowIndex="1" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="3" GridPane.rowIndex="1" />

         </children>

      </GridPane>

      <Label layoutX="300.0" layoutY="47.0" prefHeight="94.0" prefWidth="220.0" text="뭐먹어">

         <font>

            <Font size="72.0" />

         </font>

      </Label>

   </children>

</AnchorPane>

Controller.java:

package application;



import javafx.event.ActionEvent;

import javafx.fxml.FXML;

import javafx.fxml.FXMLLoader;

import javafx.scene.Parent;

import javafx.scene.Scene;

import javafx.stage.Stage;



public class Controller {

    @FXML

    private void clickmainmenu(ActionEvent event) {



            try {

                Parent koreanfood = FXMLLoader.load(getClass().getResource("koreanfood.fxml"));



                Scene scene = new Scene(koreanfood);



                Stage primaryStage = (Stage)koreanfood.getScene().getWindow();



                primaryStage.setScene(scene);



            } catch(Exception e) {

                e.printStackTrace();

            }



    }

}

error:

Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.Trampoline.invoke(Unknown Source)

    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.MethodUtil.invoke(Unknown Source)

    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)

    at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)

    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)

    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)

    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)

    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)

    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)

    at javafx.event.Event.fireEvent(Event.java:198)

    at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3470)

    at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3398)

    at javafx.scene.Scene$MouseHandler.process(Scene.java:3766)

    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)

    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)

    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)

    at java.security.AccessController.doPrivileged(Native Method)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)

    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)

    at com.sun.glass.ui.View.handleMouseEvent(View.java:555)

    at com.sun.glass.ui.View.notifyMouse(View.java:937)

    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)

    at java.lang.Thread.run(Unknown Source)

i want to change the scene from mainmenu.fxml to koreanfood.fxml
but error occurred.

i tried to replace ActionEvent with MouseEvent

error:

java.lang.NullPointerException: Location is required.

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3207)

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)

    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)

    at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)

    at application.Controller.clickmainmenu(Controller.java:15)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.Trampoline.invoke(Unknown Source)

    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at sun.reflect.misc.MethodUtil.invoke(Unknown Source)

    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)

    at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)

    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)

    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)

    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)

    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)

    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)

    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)

    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)

    at javafx.event.Event.fireEvent(Event.java:198)

    at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3470)

    at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3398)

    at javafx.scene.Scene$MouseHandler.process(Scene.java:3766)

    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)

    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)

    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)

    at java.security.AccessController.doPrivileged(Native Method)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)

    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)

    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)

    at com.sun.glass.ui.View.handleMouseEvent(View.java:555)

    at com.sun.glass.ui.View.notifyMouse(View.java:937)

    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)

    at java.lang.Thread.run(Unknown Source)

koreanfood.fxml:

<?xml version="1.0" encoding="UTF-8"?>



<?import javafx.scene.image.*?>

<?import javafx.scene.text.*?>

<?import javafx.scene.control.*?>

<?import java.lang.*?>

<?import javafx.scene.layout.*?>

<?import javafx.scene.layout.AnchorPane?>



<AnchorPane prefHeight="600.0" prefWidth="800.0" style="-fx-background-color: yellow;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">

   <children>

      <Label layoutX="327.0" layoutY="22.0" prefHeight="99.0" prefWidth="146.0" text="한식">

         <font>

            <Font size="70.0" />

         </font>

      </Label>

      <GridPane hgap="20.0" layoutX="61.0" layoutY="121.0" prefHeight="448.0" prefWidth="678.0" vgap="20.0">

        <columnConstraints>

          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />

        </columnConstraints>

        <rowConstraints>

          <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />

          <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />

            <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />

        </rowConstraints>

         <children>

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;">

               <children>

                  <ImageView fitHeight="99.0" fitWidth="121.0" layoutX="17.0" layoutY="14.0" pickOnBounds="true" preserveRatio="true" />

                  <Label layoutX="54.0" layoutY="104.0" prefHeight="29.0" prefWidth="58.0" text="111" />

               </children></AnchorPane>

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;" GridPane.rowIndex="1" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;" GridPane.rowIndex="2" />

            <AnchorPane prefHeight="200.0" prefWidth="200.0" style="-fx-background-color: white;" GridPane.columnIndex="1" />

         </children>

      </GridPane>

   </children>

</AnchorPane>

Can anybody help me??

for loading Windows or stages i've created this mehod by myself

  public static Object loadWindow(URL loc, String title, Stage parentStage, String test) {

    Object controller = null;

    try {

        FXMLLoader loader = new FXMLLoader(loc);

        Parent parent = loader.load();

        controller = loader.getController();

        Stage stage = null;

        if (parentStage != null) {

            stage = parentStage;

        } else {

            stage = new Stage(StageStyle.UNDECORATED);

        }

        stage.setTitle(title);

        stage.setScene(new Scene(parent));

        stage.show();

        setStageIcon(stage);

        if ("yes".equals(test)) {

            stage.setMaximized(true);

        } else {

            stage.setMaximized(false);

        }



    } catch (IOException ex) {

        Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);

    }

    return controller;

}

and the call method it's like this

loadWindow(getClass().getResource("/package/YOURSTAGE.fxml"), "TITLE", null,"no");