import org.jfree.chart.*;
import org.jfree.data.category.*;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.xy.*;
import org.jfree.data.*;
import org.jfree.chart.renderer.category.*;
import org.jfree.chart.plot.*;
import java.awt.*;
public class BarExample1{
public static void main(String arg[]){
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(2, "Marks", "Rahul");
dataset.setValue(7, "Marks", "Vinod");
dataset.setValue(4, "Marks", "Deepak");
dataset.setValue(9, "Marks", "Prashant");
dataset.setValue(6, "Marks", "Chandan");
JFreeChart chart = ChartFactory.createBarChart (
"BarChart using JFreeChart","Student", "Marks", dataset,
PlotOrientation.VERTICAL, false,true, false);
chart.setBackgroundPaint(Color.yellow);
chart.getTitle().setPaint(Color.blue);
CategoryPlot p = chart.getCategoryPlot();
p.setRangeGridlinePaint(Color.red);
ChartFrame frame1=new ChartFrame("Bar Chart",chart);
frame1.setSize(400,350);
frame1.setVisible(true);
}
}
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