《Java编程思想》读书笔记（5）-白红宇

今天和vandalor讨论到多态的思想和好处，自己对多态也有了进一步的认识。再来想了想前面一篇笔记中的代码，想到如果用户能够在不知道到底是applet还是窗体的情况能够跑起来的话，那应该更符合封装的思想了。所得代码如下：

//Console.java

import java.awt.*;

import javax.swing.*;

public class Console

{

public static String title(Object obj)

{

String str = "";

str = obj.getClass().toString();

if(str.indexOf("class")!=-1)

{

str = str.substring(6);

}

return str;

}

public static void run(JFrame frame,int width,int height)

{

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setTitle(title(frame));

frame.setSize(width,height);

frame.setVisible(true);

}

public static void run(JApplet applet,int width,int height)

{

JFrame frame = new JFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setTitle(title(applet));

frame.setSize(width,height);

frame.getContentPane().add(applet);

applet.init();

applet.start();

frame.setVisible(true);

}

public static void run(JPanel panel,int width,int height)

{

JFrame frame = new JFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setTitle(title(panel));

frame.setSize(width,height);

frame.getContentPane().add(panel);

frame.setVisible(true);

}

//Test.java

import javax.swing.*;

public class Test extends JApplet

{

/**

* @param args

public void init()

{

JLabel lb1 = new JLabel("Hello,World");

this.getContentPane().add(lb1);

}

public static void main(String[] args)

{

Test t1 = new Test();

Console.run(t1,300,300);

}

本文转自Phinecos(洞庭散人)博客园博客，原文链接：http://www.cnblogs.com/phinecos/archive/2006/06/01/414397.html，如需转载请自行联系原作者