050222找到class在哪里

最新推荐文章于 2022-10-25 22:37:25 发布

原创最新推荐文章于 2022-10-25 22:37:25 发布 · 745 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#class #animation #import #applet #primitive #initialization

java学习日志专栏收录该内容

3 篇文章

订阅专栏

博客对Animator.java源代码进行分析，展示了多个import语句，指出相关class在C:/j2sdk1.4.2_04/lib的tools.jar里。还介绍了Animator类继承Applet并实现Runnable和MouseListener接口，以及一些primitive members的初始化情况。

看Animator.java源代码
import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
import java.applet.AudioClip;
import java.util.Vector;
import java.util.Hashtable;
import java.util.Enumeration;
import java.net.URL;
import java.net.MalformedURLException;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;

//查到这些java.util等里的class都在C:/j2sdk1.4.2_04/lib 里面的tools.jar里面。
//使用jar 工具可以查看到里面的class。

又看到
public class Animator extends Applet implements Runnable, MouseListener {
    int appWidth = 0;                // Animator width
    int appHeight = 0;               // Animator height
    Thread engine = null;            // Thread animating the images
    boolean userPause = false;       // True if thread currently paused by user
    boolean loaded = false;          // Can we paint yet?
    boolean error = false;           // Was there an initialization error?
    Animation animation = null;      // Animation this animator contains
    String hrefTarget = null;        // Frame target of reference URL if any
    URL hrefURL = null;              // URL link for information if any
    static final String sourceLocation =
                          " http://java.sun.com/applets/applets/Animator/";
    static final String userInstructions = "shift-click for errors, info";
    static final int STARTUP_ID    = 0;
    static final int BACKGROUND_ID = 1;
    static final int ANIMATION_ID = 2;
//这是说Animator extends Applet这个类，并且implements Applet的2个 subclass： Runnable 和MouseListener
//在下来是一些primitive members 的initialize.