[java] Generating new Vehicles

package traffic;


import java.awt.Color;
import java.awt.Graphics2D;


public class vehicle {
    
    private static final int size = 20;
    private Color vehicleColor;
    private int Xvehicle, Yvehicle, speedVehicle; 

    public vehicle(int x, int y, int velocity) {

        vehicleColor = Color.BLUE;  
        Xvehicle =  x;
        Yvehicle = y;
        speedVehicle = velocity;


     }

    public void drive() {


        Xvehicle += speedVehicle;

    }


    public void draw(Graphics2D g2) {

        g2.setColor(vehicleColor);
        g2.fillRect(Xvehicle, Yvehicle, size, size);

            }

    
}

package traffic;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.Timer;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;



public class Anime extends junction  {


    private vehicle vec_1  = new vehicle(80,365, 2);

    private int   a_interval  = 35;
    private int   b_interval = 4000;
    private Timer a_timer, b_timer;


    public Anime() {

        a_timer = new Timer(a_interval, new Timer1());
           a_timer.start();
       b_timer = new Timer(b_interval, new Timer2());
    }

    public void setAnimation(boolean StartStop) {
        if (StartStop) {
            a_timer.start();
            b_timer.start();
        } else {

            a_timer.stop();
            b_timer.stop();
        }
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
       Graphics2D g3 = (Graphics2D) g;
       vec_1.draw(g3);



    }



    class Timer1 implements ActionListener {

        public void actionPerformed(ActionEvent e) {

            vec_1.drive();
            repaint();
        }
    }


class Timer2 implements ActionListener {

        public void actionPerformed(ActionEvent e) {
             // g = (Graphics2D)this.getGraphics();
            //create new vehicle randomly...
        }
    }
}