import java.applet.Applet;
import java.awt.*;
import java.awt.geom.*;
import javax.swing.JFrame;
public class picture extends JFrame {
public picture(){
//如果你想让标题栏消失你可以不注释这条语句
// this.setUndecorated(true);
setLocation(50, 50);
setResizable(false);
setSize(535, 412);
setVisible(true);
}
public void paint(Graphics g) {
//把背景设成白色
setBackground(Color.WHITE);
//把画笔设成2D的这样画笔的粗细可以改变
Graphics2D g_2d =(Graphics2D)g;
//设置画笔大小
BasicStroke bs = new BasicStroke(4,BasicStroke.CAP_SQUARE,BasicStroke.JOIN_ROUND);
g_2d.setStroke(bs);
//画圆
g_2d.setColor(Color.ORANGE);
Ellipse2D oval = new Ellipse2D.Double(430, 50, 80, 80);
g_2d.draw(oval);
//画房子
g_2d.setColor(Color.BLACK);
Line2D line1=new Line2D.Double(120,140,40,220);
Line2D line2=new Line2D.Double(120,140,200,220);
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