§ create a thread object in two ways: - declare a subclass of a thread class and override the run () method. Class myThread extends Thread {public void run() {/ * overrides the method * /}} - declares a class that implements the runnable interface and implements the run() method. Class myThread implements runnable {public void run() {/ * implements the method * /}}}
import java.awt.*;
import java.applet.Applet;
public class Javase_65 extends Applet //定义主类
{
Image img;
public void init() //初始化操作，将图像"jpp.jpg"装入img中
{
img=getImage(getCodeBase(),"jpp.jpg");
}
public void paint(Graphics g)
{
g.drawString("java",50,15); //在小程序窗口显示文字
g.drawImage(img,30,30,200,200,this); //将img显示在窗口中
play(getDocumentBase(),"mus.mid"); //播放音乐"mus.mid"
}
}
<Javase_65 .html>
<html>
<applet code="Javase_65 .class"
width=300
height=250 >
</applet>
</html>
