Flickering problem with applet

Question

After doing a programming lab assignment, with no work, I decided to modify one of the completed programs, which was a pong-like game. Anyways, after changing it to a white on black setup, I now get major flickering. One of the previous programs was to animate something without it flickering using a buffered image. So I converted it over, but it had no effect.
import java.applet.Applet;
import java.awt.*;
public class PongGame2 extends Applet
     int paddleX, paddleY, ballX, ballY, incX, incY, score, appletWidth, appletHeight;
     Image virtualMem;
     Graphics gBuffer;
     public void init()
          ballX = 10;
          ballY = 10;
          incX  = 3;
          incY  = 3;
          score = 0;
          appletWidth = getWidth();
          appletHeight = getHeight();
          virtualMem = createImage(appletWidth, appletHeight);
          gBuffer = virtualMem.getGraphics();
     public void paint(Graphics g)
          draw(g, paddleX, paddleY, ballX, ballY);
          ballX += incX;
          ballY += incY;
          if (incY > 0 && ballY > 580-incY)
              incY = -incY;
          else if (incY < 0 && ballY < 2*incY)
              incY = -incY;
          if (ballY < paddleY && ballY >= paddleY-20 && ballX > paddleX && ballX < paddleX+100)
               incY = -incY;
          if (ballY > paddleY + 10 && ballY < paddleY + 20 && ballX > paddleX && ballX < paddleX+100)
              incY = -incY;
          if (incX > 0 && ballX > 780-incX)
              incX = -incX;
          else if (incX < 0 && ballX < 2*incX)
              incX = -incX;
          if (ballY < 1)
               score++;
           try
                Thread.sleep(7);
           catch(InterruptedException ex)
          repaint();     
     public boolean mouseMove(Event e, int x, int y)
          paddleX = x-50;
          paddleY = y-10;          
          repaint();
          return true;
     public boolean mouseIdle(Event e, int x, int y)
          repaint();
          return true;
     public void createBackground(Graphics g)
          gBuffer.setColor(Color.black);
          gBuffer.fillRect(0,0,800,600);
          gBuffer.setColor(Color.white);   
          gBuffer.drawString("Score: " + score/5,200,20);
     public void draw(Graphics g, int paddleX, int paddleY, int ballX, int ballY)
          createBackground(g);
          gBuffer.setColor(Color.white);
          gBuffer.fillRect(paddleX,paddleY,100,20);
          gBuffer.fillOval(ballX,ballY,20,20);
          g.drawImage(virtualMem,0,0,this);
}

Answer 1

Petes1234, thanks!
It works perfectly now, and without having warnings of using deprecated features. It took me a while though to find how to set this up, and proper methods.
Here's the code right now:
import java.awt.*;
import javax.swing.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
public class JavaPongGame1 extends JApplet implements MouseMotionListener
     int paddleX, paddleY, ballX, ballY, incX, incY, score;
     public void init()
          ballX = 10;
          ballY = 10;
          incX  = 3;
          incY  = 3;
          score = 0;
          addMouseMotionListener(this);
     public void paint(Graphics g)
          draw(g, paddleX, paddleY, ballX, ballY);
          ballX += incX;
          ballY += incY;
          if (incY > 0 && ballY > 580-incY)
              incY = -incY;
          else if (incY < 0 && ballY < 2*incY)
              incY = -incY;
          if (ballY < paddleY && ballY >= paddleY-20 && ballX > paddleX && ballX < paddleX+100)
               incY = -incY;
          if (ballY > paddleY + 10 && ballY < paddleY + 20 && ballX > paddleX && ballX < paddleX+100)
              incY = -incY;
          if (incX > 0 && ballX > 780-incX)
              incX = -incX;
          else if (incX < 0 && ballX < 2*incX)
              incX = -incX;
          if (ballY < 1)
               score++;
          try
                Thread.sleep(7);
           catch(InterruptedException ex)
          repaint();
     public void mouseMoved(MouseEvent e)
          paddleX = e.getX()-50;
          paddleY = e.getY()-10;          
          repaint();
          e.consume();
     public void mouseDragged(MouseEvent e)
     public void createBackground(Graphics g)
          g.setColor(Color.black);
          g.fillRect(0,0,800,600);
          g.setColor(Color.white);   
          g.drawString("Score: " + score/5,200,20);
     public void draw(Graphics g, int paddleX, int paddleY, int ballX, int ballY)
          createBackground(g);
          g.setColor(Color.white);
          g.fillRect(paddleX,paddleY,100,20);
          g.fillOval(ballX,ballY,20,20);
}