JFreeChart Chart Border Example

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import java.awt.Color;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;

public class JFreeChartChartBorderExample {

	public static void main(String[] args) {

		DefaultPieDataset dataset = new DefaultPieDataset();
		dataset.setValue("JAVA", 40.1);
		dataset.setValue("C#", 22);
		dataset.setValue("C++", 81);
		// Creation Of Chart.
		JFreeChart chart = ChartFactory.createPieChart("Programming Languages", dataset, true, // legend?
				true, // tooltips?
				false // URLs?
		);
		chart.setBorderVisible(true);
		chart.setBorderPaint(Color.red); // You can set any color as border here.

		ChartFrame frame = new ChartFrame("JFreeChat Pie Chart", chart);
		frame.pack();
		frame.setVisible(true);
	}
}

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