下列JApplet使用重写paintCompon6t()方法来绘制图像，请填写正确的代码在横线处。 import java.awt.*; import javax.swing.*; public class Test extends JApplet { staic String fileName = "IMG onClick=over(this) title=放大().gif"; public void init() {Container cp = getContentPane();cp.setLayout(new GridLayout(1,1));Image i = getImage(getCodeBase(),fileName);MyImagePanel ip=new MyInmagePanel(i);cp. add (ip); } } class MyImagePanel extends JPanel { Image i; public MyImagePanel(Image IMG onClick=over(this) title=放大) {this.i = IMG onClick=over(this) title=放大; } public void paintComponent(Graphics gg) { 【15】 ;gg.drawImage(i,20,20,this); } }