How to remove separator line in jfree chart- donut chart

Question

I am creating Donut chart using Jfreechart. I want to remove separator line (ie.line between green section and white section)- This line is exceeding the chart part. i need

Answer 1

The observed lines are the so-called "separator" lines. RingPlot has several methods to control them; amongst them, see setSeparatorsVisible(boolean).

By calling plot.setSeparatorsVisible(false) in your method createChart(), you can hide those lines.