JFreeChart x axis Format

问题:

How to format x axis labels? I have a chart(look at attach1) I need to change x axis labels to the labels in the next attach (but with the same chart)

回答1:

To set the label of the axis (in your example "counts") call

XYPlot plot = (XYPlot) chart.getPlot();
plot.getDomainAxis().setLabel("counts");

To change the number format of the axis call

XYPlot plot = (XYPlot) chart.getPlot();
((NumberAxis)plot.getDomainAxis()).setNumberFormatOverride(new DecimalFormat("0"));

To change the visible range of the plot call

XYPlot plot = (XYPlot) chart.getPlot();
((NumberAxis)plot.getDomainAxis()).setRange(0,20);