Instead of so many
series.getData().add(new XYChart.Data(dateFormat.parse("11/Jan/2014"), 23));
series.getData().add(new XYChart.Data(dateFormat.parse("09/Feb/2014"), 14));
series.getData().add(new XYChart.Data(dateFormat.parse("22/Mar/2014"), 15));
series.getData().add(new XYChart.Data(dateFormat.parse("14/Apr/2014"), 24));
series.getData().add(new XYChart.Data(dateFormat.parse("22/May/2014"), 34));
series.getData().add(new XYChart.Data(dateFormat.parse("07/Jun/2014"), 36));
series.getData().add(new XYChart.Data(dateFormat.parse("22/Jul/2014"), 22));