Java的代码!我看不明,请讲解!
来源:百度知道 编辑:UC知道 时间:2024/05/22 14:02:28
import java.awt.*;
import java.awt.event.*;
class MediaPlayer extends Frame implements ActionListener,
ControllerListener, ItemListener
{
Player player;
Component vc, cc;
boolean first = true, loop = false;
String currentDirectory;
MediaPlayer (String title)
{
super (title);
addWindowListener
(new WindowAdapter ()
{
好象没有什么实际意义的代码段
import javax.media.*;
import java.awt.*;
import java.awt.event.*; 以上均为导入类库包
class MediaPlayer extends Frame implements ActionListener,
ControllerListener, ItemListener 自定义类MediaPlayer继承自frame,实现接口actionlistener,controllerlistener和ItemListener
{
Player player;
Component vc, cc; 声明对象
boolean first = true, loop = false;声明并对布尔变量赋值
String currentDirectory; 声明字符串
MediaPlayer (String title) 构造函数
{
super (title); 调用父类构造函数
addWindowListener 给本类的对象增加监听器,以实现部分功能(此处代码不完整,好象是关闭窗口的代码)
(new WindowAdapter ()
{
import javax.media.*;
import java.awt.*;
import java.awt.event.*; //引入包
class MediaPlayer extends Frame implements ActionListener,
ControllerListener, ItemListener
{
Player player; //声明一个变量
Compo