代码

public class TestLineChart extends Application {
 
    private LineChart chart;
    private NumberAxis xAxis;
    private NumberAxis yAxis;

    public static double normalDistribution(double x, double u,double seta) {
        return 1.0/(Math.sqrt(2.0*Math.PI)*seta)*Math.exp(
        		-0.5*Math.pow((x-u)/seta, 2));		
    }
    public XYChart.Series<Double,Double> createSeries(){
    	Series series = new LineChart.Series<>();
    	series.setName("X-Y(0,1)");
    	for(double i=-4;i<=4;i+=0.1) {
    		series.getData().add(new Data(i,normalDistribution(i,0,1)));
    	}
		return series;
    }
    public Parent createContent() {
        xAxis = new NumberAxis();
        xAxis.setLabel("X-Axis");
        yAxis = new NumberAxis();
        yAxis.setLabel("Y-Axis");
        
        chart = new LineChart(xAxis, yAxis);
        chart.setId("linechart");

        chart.getData().add(createSeries());
        chart.setTitle("折线图");
        final String liveScatterChartCss =
                getClass().getResource("LineChartUtility.css").toExternalForm();
        chart.getStylesheets().add(liveScatterChartCss);
        chart.setCreateSymbols(false);
        return chart;
    }
 
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setScene(new Scene(createContent()));
        primaryStage.show();
    }
    public static void main(String[] args) { launch(args);}
}

CSS

线的颜色
.default-color0.chart-series-line {
	-fx-stroke:#55ddff
}
圈的颜色，圈的填充色
.chart-line-symbol.default-color0{
	-fx-background-color: blue,red;
}
是否隐藏圈节点
.default-color0.chart-line-symbol { -fx-background-color: transparent; }

当然圈作为一个节点，当然是可以设置提示框的，请见Tooltip。