多边形

package result;
//绘制多边形
import java.awt.*;
import javax.swing.*;
class MyCanvas extends Canvas{
public MyCanvas() {
// TODO Auto-generated constructor stub
setSize(400,300);
}
public void paint(Graphics g) {
int x[] = {80,190,150,50};
int y[] = {80,30,170,210};
//构建多边形顶点x坐标和y坐标数组
int pts = x.length;
g.drawPolygon(x,y,pts);
}
}
public class F8 extends JFrame{
F8(){
super("绘制多边形");
setSize(300,250);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
add(new MyCanvas());
validate();
}
public static void main(String[] args) {
new F8();
}
}