creditscroller.java

书籍"Java_面向事件编程"的附带光盘代码

import objectdraw.*;
import java.awt.*;

public class CreditScroller extends ActiveObject {
    
    public static final int DELAY_TIME = 500;
    
    private DrawingCanvas canvas;
    
    public CreditScroller(DrawingCanvas aCanvas) {
        canvas = aCanvas;
        start();
    }
    
    public void run() {
        new Credit("Producer . . . Martha Washington", canvas);
        pause(DELAY_TIME);
        new Credit("Director . . . George Washington", canvas);
        pause(DELAY_TIME);
        new Credit("Script . . . Thomas Jefferson", canvas);
        pause(DELAY_TIME);
        new Credit("Costumes . . . Betsy Ross", canvas);
    }
}