How to launch a window on java(fx)? - javafx

Question

I'm having an issue, I've put an exception around part of my code and it returns
"Caught expection :
/Users/delorszimi/Documents/Documents/Java%20CW/JavaFXbasics/bin/Main.fxml:8"
It seems there's a problem with the anchorPane section in my fxml file that's stopping it from launching. Most of my code is below...
package application;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.stage.Stage;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
public class Main extends Application {
static Stage window = new Stage();
#Override
public void start(Stage window) throws Exception {
try{
window.setTitle("Sprite Editor");
BorderPane pane = new BorderPane();
Scene sc = new Scene(pane,300,300);
Parent content = FXMLLoader.load(getClass().getClassLoader().getResource("Main.fxml"));
pane.setCenter(content);
window.setScene(sc);
window.show();
window.setOnCloseRequest(e -> closeWindow());
}
catch(Exception e){
System.err.println("Caught expection : " + e.getMessage());
}
}
private void closeWindow() {
Boolean decision = ConfirmBox.display("Are you sure you want to exit?", "Title");
if(decision)
window.close();
}
public static void main(String[] args) {
launch(args);
}
}
FXML file
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.canvas.Canvas?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="432.0" prefWidth="498.0"
xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1"
fx:controller="MainController">
<children>
<Canvas fx:id="Canvas1" height="240.0" layoutX="81.0" layoutY="39.0"
width="308.0" />
</children>
</AnchorPane>
package application;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.control.Button;
import javafx.scene.control.ColorPicker;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
public class MainController {
#FXML
public void initialize(){
Button botao = new Button("Browse Files");
Button exit = new Button("Exit");
exit.setOnAction(e -> System.exit(0));
StackPane layout = new StackPane();
layout.getChildren().addAll(botao,exit);
final Canvas canvas1 = new Canvas(500,300);
GraphicsContext gc = canvas1.getGraphicsContext2D();
gc.setStroke(Color.BLACK);
gc.setLineWidth(1);
ColorPicker cp = new ColorPicker();
layout.getChildren().addAll(canvas1,cp);
Scene sc = new Scene(cp);
sc.setOnMousePressed(e->{
gc.beginPath();
gc.lineTo(e.getSceneX(), e.getSceneY());
gc.stroke();
});
sc.setOnMouseDragged(e->{
gc.lineTo(e.getSceneX(), e.getSceneY());
gc.stroke();
});
}
public void size(){
double width,height;
}
public void fileSelection(ActionEvent evento){
}
}

Answer 1

In FXML file you take a AnchorPane but in code section you create a borderpane instance, don't understand this part. And remove getClassLoader() and try once. I am not sure but you can check for once.