How to create a bubble chart with two parameters in JavaFX?

The bubble chart accepts a series of data points (x, y) as input values and, creates bubbles for the data points in the given series. In JavaFX, you can create a bubble chart by instantiating the javafx.scene.chart.BubbleChart class.

Generally, in all X-Y charts, the data points plot two values (x, y). In the bubble chart, there is a third value which is represented by the radius of the bubble. This chart comes handy while plotting the data points in 3 dimensions.

Anyhow, it is not mandatory to have the third value, it is only optional. Like any other XY chart, you can create a bubble chart with two values.

Example

Following is a JavaFX example demonstrating, the creation of a bubble chart with two values −

import javafx.application.Application; import javafx.geometry.Insets; import javafx.scene.Scene; import javafx.stage.Stage; import javafx.scene.chart.BubbleChart; import javafx.scene.chart.NumberAxis; import javafx.scene.chart.XYChart; import javafx.scene.layout.StackPane; public class BubbleChart_TwoParams extends Application {    public void start(Stage stage) {       //Creating the X and Y axes       NumberAxis xAxis = new NumberAxis(5, 25, 5);       NumberAxis yAxis = new NumberAxis(50, 90, 5);       //Setting labels to the axes       xAxis.setLabel("Temperature °C");       yAxis.setLabel("Ice Cream Sales in (USD)");       //Creating the Scatter chart       BubbleChart bubbleChart = new BubbleChart(xAxis, yAxis);       //Preparing data for the scatter chart       XYChart.Series series = new XYChart.Series();       series.getData().add(new XYChart.Data(15.2, 72.79));       series.getData().add(new XYChart.Data(8.39, 83.97));       series.getData().add(new XYChart.Data(20.6, 67.14));       series.getData().add(new XYChart.Data(15.8, 80.32));       series.getData().add(new XYChart.Data(10.4, 87.27));       //Setting the data to scatter chart       bubbleChart.getData().add(series);       //Setting title to the scatter chart       //scatterChart.setTitle("Ice Cream Sales vs Temperature");       //Setting name to the series       series.setName("Temperatue vs Icecream Sales");       //Creating a stack pane to hold the chart       StackPane pane = new StackPane(bubbleChart);       pane.setPadding(new Insets(15, 15, 15, 15));       pane.setStyle("-fx-background-color: BEIGE");       //Setting the Scene       Scene scene = new Scene(pane, 595, 300);       stage.setTitle("Bubble Chart");       stage.setScene(scene);       stage.show();    }    public static void main(String args[]){       launch(args);    } }

Output