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

public class Car
{  
    public static void main(String[] args) 
    {
	SwingApp app = new SwingApp(300, 300);	    // set app window size
	app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    }
}

class SwingApp extends JFrame
{
    private final DrawPanel panel;		    // class variable
    
    public SwingApp(int width, int height)	    // class constructor
    {
	super();				    // call to super class constructor
	Container pane = super.getContentPane();    // create layout, set colors
	panel = new DrawPanel();		    // add GUI components
	panel.setBackground(Color.yellow);
	pane.add(panel);
	
	Toolkit toolkit = Toolkit.getDefaultToolkit();	// optionally position JFrame
	Dimension screenSize = toolkit.getScreenSize(); // in the middle of the screen 
	super.setLocation((screenSize.width - width)/2, (screenSize.height - height)/2);	
	super.setTitle("Swing app");		    // set desired window title
	super.setSize(width, height);		    // set desired window size
	super.setVisible(true);	
	// add here more code for GUI components
    }
}

class DrawPanel extends JPanel			    // main window panel
{
    @Override
    public void paintComponent(Graphics g)
    {
	super.paintComponent(g);		    // must be the 1st line
	// add here more code for drawing on panel 
	// setting background and foreground colors
	g.setColor(Color.white);
	g.fillRect(0, 0, getWidth(), getHeight());
	g.setColor(Color.red);

// drawing the car body
	g.fillRect(100,110, 60, 10);

// drawing the wheels
	g.setColor(Color.black);
	g.fillOval(110, 120, 10, 10);     // left wheel
	g.fillOval(140, 120, 10, 10);     // right wheel

	int x[] = {110, 120, 140, 150};   // coordinate arrays for the 
	int y[] = {110, 100, 100, 110};   //   car cabin

	g.setColor(Color.blue);
	g.fillPolygon(x, y, 4);           // drawing the cabin in blue

	g.drawString("how do you like it?", 80, 90);
    }
}