import javax.swing.*;
import java.awt.*;
import static java.awt.Color.*;

public class ShapeTest extends JPanel {
	public ShapeTest() {
		setPreferredSize(new Dimension(200, 150));
	}

	@Override
	public void paintComponent(Graphics g) {
		//    ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,
		//				     RenderingHints.VALUE_ANTIALIAS_ON);
		super.paintComponent(g);
		int[] xs = {100, 137, 175, 175, 137, 100};
		int[] ys = {  0,   0,  25,  50,  50,  25};

		g.setColor(RED);
		g.drawLine(0, 0, 75, 50);
		g.setColor(GREEN);
		g.drawRect(0, 0, 75, 50);
		g.setColor(BLUE);
		g.drawOval(0, 75, 75, 50);
		g.setColor(ORANGE);
		g.drawPolygon(xs, ys, 6);
		g.setColor(CYAN);
		g.fillRect(90, 65, 75, 50);
		g.setColor(MAGENTA);
		g.fillRect(100, 75, 75, 50);
		g.setColor(YELLOW);
		g.fillRect(110, 85, 75, 50);
	}

	public static void main(String[] args) {
		SwingUtilities.invokeLater(() -> {
			JFrame frame = new JFrame("Graphics Sample!");
			frame.add(new ShapeTest());
			frame.pack();
			frame.setVisible(true);
			frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		});
	}
}