Question

我有一个问题，也许很简单..希望您的帮助

下面的代码显示了一个图形。

public class LineChartSample extends Application {
 
    @Override public void start(Stage stage) {
        stage.setTitle("Line Chart Sample");
        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis();
         xAxis.setLabel("Month");
        final LineChart<String,Number> lineChart = 
                new LineChart<String,Number>(xAxis,yAxis);
       
        lineChart.setTitle("Stock Monitoring, 2010");
                          
        XYChart.Series series1 = new XYChart.Series();
        series1.setName("Portfolio 1");
        
        series1.getData().add(new XYChart.Data("Jan", 23));
        series1.getData().add(new XYChart.Data("Feb", 14));
        series1.getData().add(new XYChart.Data("Mar", 15));
        series1.getData().add(new XYChart.Data("Apr", 24));
        series1.getData().add(new XYChart.Data("May", 34));
        series1.getData().add(new XYChart.Data("Jun", 36));
        series1.getData().add(new XYChart.Data("Jul", 22));
        series1.getData().add(new XYChart.Data("Aug", 45));
        series1.getData().add(new XYChart.Data("Sep", 43));
        series1.getData().add(new XYChart.Data("Oct", 17));
        series1.getData().add(new XYChart.Data("Nov", 29));
        series1.getData().add(new XYChart.Data("Dec", 25));
        
        XYChart.Series series2 = new XYChart.Series();
        series2.setName("Portfolio 2");
        series2.getData().add(new XYChart.Data("Jan", 33));
        series2.getData().add(new XYChart.Data("Feb", 34));
        series2.getData().add(new XYChart.Data("Mar", 25));
        series2.getData().add(new XYChart.Data("Apr", 44));
        series2.getData().add(new XYChart.Data("May", 39));
        series2.getData().add(new XYChart.Data("Jun", 16));
        series2.getData().add(new XYChart.Data("Jul", 55));
        series2.getData().add(new XYChart.Data("Aug", 54));
        series2.getData().add(new XYChart.Data("Sep", 48));
        series2.getData().add(new XYChart.Data("Oct", 27));
        series2.getData().add(new XYChart.Data("Nov", 37));
        series2.getData().add(new XYChart.Data("Dec", 29));
        
        XYChart.Series series3 = new XYChart.Series();
        series3.setName("Portfolio 3");
        series3.getData().add(new XYChart.Data("Jan", 44));
        series3.getData().add(new XYChart.Data("Feb", 35));
        series3.getData().add(new XYChart.Data("Mar", 36));
        series3.getData().add(new XYChart.Data("Apr", 33));
        series3.getData().add(new XYChart.Data("May", 31));
        series3.getData().add(new XYChart.Data("Jun", 26));
        series3.getData().add(new XYChart.Data("Jul", 22));
        series3.getData().add(new XYChart.Data("Aug", 25));
        series3.getData().add(new XYChart.Data("Sep", 43));
        series3.getData().add(new XYChart.Data("Oct", 44));
        series3.getData().add(new XYChart.Data("Nov", 45));
        series3.getData().add(new XYChart.Data("Dec", 44));
        
        Scene scene  = new Scene(lineChart,800,600);       
        lineChart.getData().addAll(series1, series2, series3);
       
        stage.setScene(scene);
        stage.show();
    }
 
 
    public static void main(String[] args) {
        launch(args);
    }
}

但是我想将此代码划分为一个函数..当我调用它时，它将执行代码并显示图形

我尝试了很多次，但是代码中有链接，我不知道如何收集它们，尤其是在主体部分以及舞台和场景部分中

我希望获得帮助谢谢

Answer 1

我认为，您可以从代码中提取三个函数。

第一个是XYChart.Series getSeries(seriesName)，它返回带有填充数据的Series对象。

第二个是getScene(lineCharts,width,height)，它返回添加了序列的Scene对象。

第三是showScene(stage)，在这种方法中，您可以使用上述方法设置舞台，然后调用stage.show()来显示舞台。

将代码转换为函数和链接问题

1 个答案: