import javax.swing.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.*;
import java.awt.Color;
import java.awt.BasicStroke;
import java.awt.Polygon;

public class ShapeTest8 extends JPanel{

  public static void main(String[] args){
    JFrame frame = new JFrame();

    ShapeTest8 app = new ShapeTest8();
    frame.getContentPane().add(app);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 300, 200);
    frame.setTitle("ƒ^ƒCƒgƒ‹");
    frame.setVisible(true);
  }

  public void paintComponent(Graphics g){
    Graphics2D g2 = (Graphics2D)g;

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                        RenderingHints.VALUE_ANTIALIAS_ON);

    BasicStroke wideStroke = new BasicStroke(4.0f);
    g2.setStroke(wideStroke);

    int[] xpoints1 = {140, 50, 230};
    int[] ypoints1 = {20, 150, 100};
    Polygon polygon1 = new Polygon(xpoints1, ypoints1, xpoints1.length);

    g2.draw(polygon1);

    BasicStroke normalStroke = new BasicStroke(1.0f);
    g2.setStroke(normalStroke);

    g2.setPaint(Color.PINK);

    int[] xpoints2 = {30, 150, 200, 90, 30};
    int[] ypoints2 = {20, 40, 140, 130, 80};
    Polygon polygon2 = new Polygon(xpoints2, ypoints2, xpoints2.length);

    g2.fill(polygon2);
  }
}