how to change pie chart colors of JFreeChart?

Question

how to customize the colors of JFreeChart graphic. lets see my java code :

private StreamedContent chartImage ;

public void init(){
    JFreeChart jfreech         


        

Answer 1

You can customize the colors according to the labels while getting the data from the dataset:

// Add custom colors
        PiePlot plot = (PiePlot) chart.getPlot();

        for (int i = 0; i < dataset.getItemCount(); i++) {
            if(dataset.getKey(i).equals("J+1")){ 
                plot.setSectionPaint(i, Color.black);
            }
        }

You can also use a switch-case statement or the one you prefer.