first.java

来自「jfreechart不错的教程例子谢谢!」· Java 代码 · 共 36 行

package org.jfree.chart.demo;

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

/**
 * A simple introduction to using JFreeChart. This demo is described in the
 * JFreeChart Developer Guide.
 */
public class First {
	/**
	 * The starting point for the demo.
	 * 
	 * @param args
	 *            ignored.
	 */
	public static void main(String[] args) {
		// create a dataset...
		DefaultPieDataset data = new DefaultPieDataset();
		data.setValue("Category 1", 43.2);
		data.setValue("Category 2", 27.9);
		data.setValue("Category 3", 79.5);
		// create a chart...
		JFreeChart chart = ChartFactory.createPieChart("Sample Pie Chart",
				data, true, // legend?
				true, // tooltips?
				false // URLs?
				);
		// create and display a frame...
		ChartFrame frame = new ChartFrame("First", chart);
		frame.pack();
		frame.setVisible(true);
	}
}