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);
来源：https://stackoverflow.com/questions/26108850/jfreechart-x-axis-format