java中JFreeChart使用

//首先导入JFreeChart和JCommon包

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

public class Jfree {
public static void main(String[] args) {

DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("重点", 43.2);
dataset.setValue("本科", 27.9);
dataset.setValue("大专 ", 79.5);
dataset.setValue("小专 ", 79.5);
dataset.setValue("大专1 ", 79.5);
dataset.setValue("大专2 ", 79.5);

// create a chart...
JFreeChart chart = ChartFactory.createPieChart(
"简单饼状图",
dataset,
true, // legend?
true, // 提示
true );// URLs?


// create and display a frame...
ChartFrame frame = new ChartFrame("饼状图测试", chart);
frame.pack();
frame.setVisible(true);
}
}