import java.applet.Applet;
import java.awt.*;
 
// An applet to perform a simple animation.
 
public class Drive extends Applet{
	
     private Graphics page;
     private Car car;
     
   
     //sets up the animation.
     public void init() {
     	setVisible (true);
     	setSize (450,250);
       	page = getGraphics();
     	page.setXORMode (getBackground());
     	       
     }//method init
     
     
     public void start(){
             	
      car.drive();
    
          	  	
    }//method start
  }//class Drive
  
  //Represents the car that moves across the screen.
  
  class Car {
  	
  	private final int MOVE = 2;
  	private final int RIGHT_SIDE = 450;
  	private final int NUM_POINTS = 10;
  	private final int PAUSE = 100000;
  	
  	private int[] car_x = {80,70,70,90,95,140,150,175,180,170};
  	private int[] car_y = {190,190,170,170,155,155,170,170,190,190};
  	
  	private int [] car_x_update = new int [NUM_POINTS];
  	
  	//Performs the animation
  	
  	public void drive (Graphics page) {
  		
  		//Loop until car drives off the right side.
  		for (int offset=1; offset < RIGHT_SIDE; offset += MOVE) {
  			draw_car (offset,page); //draw the car
  			for (int pause=1; pause < PAUSE; pause++);
  			draw_car (offset,page); //erase the car
  		}
  		
}//method drive
 
   //Draws the car at a particular x offset.
    public void draw_car (int offset, Graphics page) {
    	
         page.setColor (Color.red);
	     page.drawPolyline (car_x, car_y,10);//car
    	 page.drawArc (80+offset,180,20,20,0,180);//rear wheel well
	     page.drawArc (150+offset,180,20,20,0,180);//front wheel well
	     page.drawLine (100+offset,190,150+offset,190);
	     page.setColor (Color.black);
	     page.drawOval (83+offset,183,14,14);//rear wheel
	     page.drawOval (153+offset,183,14,14); //front wheel
	     page.drawLine (81+offset,170,81+offset,150);//antenna
	     
       	//Update the x coordinates.    	
        for (int scan=0; scan < NUM_POINTS; scan++)
        car_x_update[scan] = car_x[scan] + offset;
        
    }//method draw_car
    
} //class Car

import java.applet.Applet;
import java.awt.*;
 
 
// An applet to perform a simple animation.
 
public class Drive extends Applet{
	
     private Graphics page;
 
     
   
     //sets up the animation.
     public void init() {
     	setVisible (true);
     	setSize (450,250);
       	page = getGraphics();
     	page.setXORMode (getBackground());
        
     }//method init
     
     
     public void start(){
     	
     	
        Car.drive(page);
    
          	  	
    }//method start
  }//class Drive
  
  //Represents the car that moves across the screen.
  
  class Car {
  	
  	private final static int MOVE = 2;
  	private final static int RIGHT_SIDE = 450;
  	private final static int NUM_POINTS = 10;
  	private final static int PAUSE = 1000000;
  	
  	
  	private static int[] car_x = {80,70,70,90,95,140,150,175,180,170};
  	private static int[] car_y = {190,190,170,170,155,155,170,170,190,190};
  	
  	private static int [] car_x_update = new int [NUM_POINTS];
 
  	//Performs the animation
  	
  	public static void drive (Graphics page) {
  		 
  		//Loop until car drives off the right side.
  		for (int offset=1; offset < RIGHT_SIDE; offset += MOVE) {
  			draw_car (offset,page); //draw the car
  			for (int pause=1; pause < PAUSE; pause++);
  			draw_car (offset,page); //erase the car
  		}
  		
}//method drive
 
   //Draws the car at a particular x offset.
    public static void draw_car (int offset, Graphics page) {
    	
         page.setColor (Color.red);
	     page.drawPolyline (car_x, car_y,10);//car
    	 page.drawArc (80+offset,180,20,20,0,180);//rear wheel well
	     page.drawArc (150+offset,180,20,20,0,180);//front wheel well
	     page.drawLine (100+offset,190,150+offset,190);
	     page.setColor (Color.black);
	     page.drawOval (83+offset,183,14,14);//rear wheel
	     page.drawOval (153+offset,183,14,14); //front wheel
	     page.drawLine (81+offset,170,81+offset,150);//antenna
	     
       	//Update the x coordinates.    	
        for (int scan=0; scan < NUM_POINTS; scan++)
        car_x_update[scan] = car_x[scan] + offset;
        
        }//method draw_car
    
} //class Car
	

for (int pause=1; pause < PAUSE; pause++);
   draw_car (offset,page); //erase the car

for (int pause=1; pause < PAUSE; pause++)
   ;
draw_car (offset,page); //erase the car

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
 
/**
 * This class will be instantiated as many times as you
 * want, each time, setting the two values, classVar and
 * instanceVar; of course, classVar will be changed for
 * all instances, whereas instanceVar will only be set
 * for the current instance being instantiated.
 */
class DemoObject
{
    static String classVar = "I'm shared by all DemoObject objects.";
    String instanceVar = "I'm use by only one DemoObject object.";
 
    public DemoObject( String sharedString, String myString )
    {
        classVar = sharedString;
        instanceVar = myString;
    }
    public String toString()
    {
        return "classVar is \"" + classVar + "\", objectVar is \"" +
                instanceVar + "\"";
    }
}
 
/**
 * This class just provides all the UI and management
 * of a collection of DemoObject instances.
 */
public class StaticDemo extends JFrame
{
    JTextField editSharedString = new JTextField( 10 );
    JTextField editObjectString = new JTextField( 10 );
    JTextArea  objectDisplay    = new JTextArea( 5, 30 );
    JButton addNewObjectButton  = new JButton( "Create a new DemoObject!" );
 
    // Maybe use a JList instead, since it can store the objects...
    List demoObjectList = new ArrayList();
 
    public static void main(String[] args)
    {
        new StaticDemo("Static Demo").displayUI();
    }
 
    public StaticDemo( String title )
    {
        super(title);
    }
 
    private void initControls()
    {
        objectDisplay.setEditable(false);
        addNewObjectButton.addActionListener( new ActionListener()
            {
                public void actionPerformed(ActionEvent e)
                {
                    // Add the new object to the list:
                    demoObjectList.add( new DemoObject( editSharedString.getText(),
                                                        editObjectString.getText() ) );
                    editSharedString.setText("");
                    editObjectString.setText("");
                    objectDisplay.setText("");
 
                    // Now refill the display list with the current
                    // list of objects and thier values:
                    Iterator it = demoObjectList.iterator();
                    while( it.hasNext() )
                    {
                        DemoObject o = (DemoObject)it.next();
                        objectDisplay.append( o.toString() );
                        if( it.hasNext() )
                            objectDisplay.append("\n");
                    }
                }
            });
    }
 
    public void displayUI()
    {
        setDefaultCloseOperation( javax.swing.JFrame.EXIT_ON_CLOSE );
 
        Container whatAPane = getContentPane();
 
        initControls();
 
        JPanel entryPanel = new JPanel();
 
        entryPanel.setLayout( new GridLayout( 1, 3 ) );
        entryPanel.add( editSharedString );
        entryPanel.add( editObjectString );
        entryPanel.add( addNewObjectButton );
 
        whatAPane.add( entryPanel, BorderLayout.NORTH );
        whatAPane.add( new JScrollPane(objectDisplay), BorderLayout.SOUTH );
 
        pack();
        setVisible(true);
    }
        
}