Chart lineChart = new Chart(ChartType.LINE);
DataSeries series = new DataSeries();
series.add(new DataSeriesItem("A", 10));
series.add(new DataSeriesItem("B", 20));
series.add(new DataSeriesItem("C", 15));
lineChart.getConfiguration().setSeries(series);
VerticalLayout layout = new VerticalLayout();
layout.addComponents(lineChart);