drawpolylineapplet.java

提供 精通Java Web动态图表编程 一书的源代码, 大家赶快下载呀

// Fig. 2.10_03: DrawPolylineApplet.java
// 绘制折线

import java.awt.*; // 引入 java.awt包中所有的类
import javax.swing.*; // 引入 javax.swing包中所有的类

public class DrawPolylineApplet extends JApplet
{
    // 在applet上绘制折线
    public void paint(Graphics g)
    {
        // 调用父类的 paint 方法
        super.paint(g);

        // 设置字体
        g.setFont(new Font("汉真广标", Font.PLAIN, 35));
        g.drawString("折线的画法", 10, 35);

        g.setColor(Color.RED);

        // 绘制一条折线		
        int[] xValues = { 20, 67, 90, 130, 280, 195, 267 };
        int[] yValues = { 70, 116, 176, 154, 46, 142, 126 };
        
		g.drawPolyline(xValues, yValues, 7);

    } // paint 方法结束

} //  DrawPolylineApplet 类结束

/**************************************************************************
 * (C) Copyright 2004-2005 by Jingkui Zhong(钟京馗) and Huan Tang(唐桓).  *
 * All Rights Reserved.                                                   *
 *                                                                        *
 * DISCLAIMER: The authors of this code have used their                   *
 * best efforts in preparing the code. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these codes. The authors *
 * shall not be liable in any event for incidental or consequential       *
 * damages in connection with, or arising out of, the furnishing,         *
 * performance, or use of these programs.                                 *
    **************************************************************************/