🚀 go-pugleaf

I am trying to simulate a traffic lights system I have done most of the 
work and so far the program is working ok. I need to add a timer so that 
I can show a graphics which shows wait, ready, go accordingly. I am 
having problems with this. Can anyone help please. I have tried  but I 
can only get the changes with button graphics where I have to press. 
Adding sounds would also be great. I am new to Java hence these questions.

Thanks

//package stop;

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

public class Applet1
     extends Applet {
   private stoplight stoplight1, stoplight2, stoplight3, 
stoplight4,WaitingMan;
   private Button PushButton1;
   private int status = 0;
   private Button PushButton2;
   //private Button WaitingMan;


   public void init() {
     setLayout(null);
     setBackground(new Color(47, 61, 89));
     stoplight1 = new stoplight(150, 50);
     stoplight2 = new stoplight(250, 150);
     stoplight3 = new stoplight(150, 250);
     stoplight4 = new stoplight(50, 150);
     WaitingMan = new stoplight(350,50);//New Line

     stoplight1.setStatus(0);
     stoplight2.setStatus(2);
     stoplight3.setStatus(0);
     stoplight4.setStatus(2);
     WaitingMan.setStatus(0) ;// New Line

    //Add Left Button for pedestrians
     PushButton1 = new Button("Press to Cross");
     PushButton1.addActionListener(new PushButton1Handler());
     PushButton1.setBounds(0, 75, 95, 20);//Set Button Size & position it
     add(PushButton1);

     //Add Right Button for Pedestrians
     PushButton2 = new Button("Press to Cross");
     PushButton2.addActionListener(new PushButton1Handler());
     PushButton2.setBounds(205, 75, 100, 20);//Set Button Size & position it
     add(PushButton2);

     //Add waiting man
     //WaitingMan = new Button("Please Wait before crossing");
     //WaitingMan.addActionListener(new PushButton1Handler());
     //WaitingMan.setBounds(205, 35, 150, 30);//Set man Size & position it
     //add(WaitingMan);

   }

//Draw the traffic lights and add colors
   public void paint(Graphics g) {

     g.setColor(new Color(200, 200, 200));
     g.fillRect(100, 0, 100, 300);//Main road for cars
     g.fillRect(0, 100, 300, 100);//Zebra crossing
     stoplight1.CheckColor(g);
     stoplight2.CheckColor(g);
     stoplight3.CheckColor(g);
     stoplight4.CheckColor(g);
     WaitingMan.CheckColor(g);
     g.drawRect(250,215,100,40);
     g.drawString("Read Before Crossing the Road",240,210);
   }

   class PushButton1Handler
       implements ActionListener {

     public void actionPerformed(ActionEvent e) {
       status++;
       if (status == 4) {
         status = 0;
       }
       switch (status) {
         case 0:
           stoplight1.setStatus(0);//Car lights
           stoplight2.setStatus(2);//Car lights
           stoplight3.setStatus(0);//pedestrian lights
           stoplight4.setStatus(2);//pedestrian lights
           WaitingMan.setStatus(2);//Wait sign

           break;
         case 1:
           stoplight1.setStatus(0);//Car lights
           stoplight2.setStatus(1);//Car lights
           stoplight3.setStatus(0);//pedestrian lights
           stoplight4.setStatus(1);//pedestrian lights
           WaitingMan.setStatus(1);//Wait Sign
           break;
         case 2:
           stoplight1.setStatus(2);//car lights
           stoplight2.setStatus(0);//Car lights
           stoplight3.setStatus(2);//Pedestrian lights
           stoplight4.setStatus(0);//Pedestrian Lights
           WaitingMan.setStatus(0);//Wait Sign
           break;
         case 3:
           stoplight1.setStatus(1);//Car lights
           stoplight2.setStatus(0);//Car lights
           stoplight3.setStatus(1);//Pedestrian lights
           stoplight4.setStatus(0);//Pedestrian lights
           WaitingMan.setStatus(0);//Wait Sign
           break;

       }
       repaint();
     }
   }


class stoplight {
   private int x;
   private int y;
   private Traffic Lamp[] = {};
   private int status;
   public stoplight(int x, int y) {
     this.x = x;
     this.y = y;
     Lamp = new Traffic[3];
     Lamp[0] = new Traffic(this, 0, x, y - 20);
     Lamp[1] = new Traffic(this, 1, x, y);
     Lamp[2] = new Traffic(this, 2, x, y + 20);
   }

   public void setStatus(int status) {
     this.status = status;
   }

   public int getStatus() {
     return (status);
   }

   public void CheckColor(Graphics g) {
     g.setColor(Color.black);
     g.fillRect(x - 10, y - 30, 20, 60);
     Lamp[0].CheckColor(g, status);
     Lamp[1].CheckColor(g, status);
     Lamp[2].CheckColor(g, status);
   }
}

class Traffic {

   private int type, x, y, status;
   private stoplight CheckTraffic;
   public Traffic(stoplight CheckTraffic, int type, int x, int y) {
     this.type = type;
     this.x = x;
     this.y = y;
   }

   public void CheckColor(Graphics g, int status) {
     switch (type) {
       case 0:
         if (status == 0) {
           g.setColor(Color.red);
           //g.drawString("Wait",255,250);
         }
         else {
           g.setColor(Color.gray);
         }
         break;
       case 1:
         if (status == 1) {
           g.setColor(Color.orange);
           g.drawString("Ready",255,260);
         }
         else {
           g.setColor(Color.gray);
         }
         break;
       case 2:
         if (status == 2) {
           g.setColor(Color.green);
           g.drawString("GO",255,270);
         }
         else {
           g.setColor(Color.gray);
         }
         break;

     }
     g.fillOval(x - 8, y - 8, 16, 16);
   }
}
     }