Jfreechart: Display weeks on x axis for value of days

Question

I am using JFreeChart to display a value for each day of a month. Now I want to have my x-axis display the weeks in a month instead of the days. At the moment the values for my

Answer 1

You should use a DateAxis for your time axis, like ChartFactory.createTimeSeriesChart() does. Then you can use setDateFormatOverride(), like they show here, and the SimpleDateFormat for "week in month."

JFreeChart chart = ChartFactory.createTimeSeriesChart(…);
DateAxis axis = (DateAxis) chart.getXYPlot().getDomainAxis();
axis.setDateFormatOverride(new SimpleDateFormat("W"));