eclipse 绘制图片并设置颜色

package awt;
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;
import awt.DrawCircle.DrawPanel;
public class DrawFrame  extends JFrame{
  public DrawFrame() {
    super();
    initialize();
  }
  private void initialize()
  {
  this.setSize(300,200);   //设置窗体大小
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置窗体关闭模式
  setContentPane(new CanvasPanel());//设置窗体面板为绘图面板对象
  this.setTitle("绘图实例");//设置标题
  }
  public static void main(String[]args) {
    new DrawFrame().setVisible(true);
  }
  class CanvasPanel extends JPanel{
    public void paint(Graphics g) {
      super.paint(g);
      Graphics2D g2=(Graphics2D)g;//强制转换成2D类型
      g.setColor(Color.cyan);//setColor方法设置颜色
      Shape[] shapes=new Shape[4];
      //声明圆形和矩形对象
      shapes[0]=new Ellipse2D.Double(5,5,100,100);
      shapes[1]=new Rectangle2D.Double(110,5,100,100);
      shapes[2]=new Rectangle2D.Double(15,15,80,80);
      shapes[3]=new Ellipse2D.Double(120,15,80,80);
      for(Shape shape:shapes) {
        Rectangle2D bounds=shape.getBounds2D();
        if(bounds.getWidth()==80)
          g2.fill(shape);//填充图形
        else
        g2.draw(shape);//绘制图形
      }
    }
  }
}