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Old March 19th, 2018, 11:35 AM
bebexx bebexx is offline
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Exclamation Redraw Circle in JavaFX

Hello all,

I need to have a circle automatically re-draw itself when a user enters in a radius value.

The code compiles(No Syntax errors) but shows nothing:

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.scene.control.TextField;
import javafx.geometry.Pos;
import javafx.scene.text.Font;
import javafx.scene.shape.*;
import javafx.scene.Group;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
import javafx.geometry.HPos;
import java.util.Scanner;

public class PP4o15 extends Application {
    private Label result;
    private TextField input;
    public void start(Stage primaryStage) {
        int r;
        double pi= 3.14, area;
        Circle circle= new Circle(100,65,20);
        Scanner q = new Scanner(;
        //Pi Method
        Font font= new Font(18);
        input= new TextField();
        //Changed Font below
        input.setFont(new Font("Arial",30));
        //Stacking input TextField ontop of circle
        //StackPane pane= new StackPane(circle);
        Group root= new Group(circle);
        Scene scene= new Scene(root,400,200);
        result = new Label("");
        primaryStage.setTitle("Enter in Radius");
    //Create method that has return
    public void processReturn(ActionEvent event)
       //Method to process return

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