为什么跑不起来..我就是想画个圈啊源码献上！
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class FrameTest
{
public static void main(String[] agrs)
{

DrawFrame frame=new DrawFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
class DrawFrame extends JFrame
{
public void DrameFrame()
{
setTitle("DrawTest");
setLocation(20,20);
setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
Mypanel component=new Mypanel();
add(component);
}
public final int DEFAULT_WIDTH=500;
public final int DEFAULT_HEIGHT=600;
}


class Mypanel extends JPanel
{
public void paintComponent(Graphics g)
{
Graphics2D g2=(Graphics2D) g;

double leftX=100;
double topY=100;
double width=100;
double height=150;

Rectangle2D rect=new Rectangle2D.Double(leftX,topY,width,height);
g2.draw(rect);

Ellipse2D ellipse=new Ellipse2D.Double();
ellipse.setFrame(rect);
g2.draw(ellipse);

g2.draw(new Line2D.Double(leftX,topY,leftX+width,topY+height));

double centerX=rect.getCenterX();
double centerY=rect.getCenterY();
double radious=150;
Ellipse2D circle=new Ellipse2D.Double();
circle.setFrameFromCenter(centerX,centerY,centerX+radious,centerY+radious);
g2.draw(circle);





}
}
运行结束后，正常情况定下是一个圆，里面套个矩形，再套个椭圆，然后穿个线。但是运行后只出现一个小框框..啥都没有，求教，我是按照书里的码字打得

------解决方案--------------------
public static void main(String[] agrs) {

DrawFrame frame = new DrawFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.drameFrame();
}
------解决方案--------------------
黄色的杠杠，是因为，你是在main函数中调用你的内部类和内部类的方法，而main函数是static，static函数调用非static函数，会有这样的警告