How to get value of a nested object?!!

Question

I am writing a small game program in java(applet). I am not getting the value of a nested object in the paint method. Please help.
the text marked as code is wrong. Can u tell me a simple method?
s1.a[0].x will give error. What should I use?
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
class SnakeBit
     int x,y; //x and y are coordinates
     int position;
public SnakeBit(int x, int y)
     this.x=x;
     this.y=y;
public SnakeBit copy(SnakeBit a)
     this.x=a.x;
     this.y=a.y;
     return this;
public int getValueX()
     int a;
     a=this.x;
     return a;
public int getValueY()
     int b;
     b=this.y;
     return b;
}//end of class SnakeBit.
class Cell
     public int x,y;
//************************************************Snake class***************************************
class Snake
     public Snake()
                         SnakeBit a[]=new SnakeBit[5];
                         a[0]=new SnakeBit(8,4);
     public static void main(String args[])
                         SnakeBit a[]=new SnakeBit[5];
                         a[0]=new SnakeBit(8,4);
                         a[1]=new SnakeBit(8,5);
                         a[2]=new SnakeBit(8,6);
                         a[3]=new SnakeBit(9,6);
                         a[4]=new SnakeBit(10,6);
                         a[5]=new SnakeBit(10,7);
                         a[6]=new SnakeBit(10,8);
          Snake a1=new Snake();
     public void up(SnakeBit a[])
          move(a);
          a[0].y=a[0].y-1;
     public void right(SnakeBit a[])
          move(a);
          a[0].x=a[0].x+1;
     public void left(SnakeBit a[])
          move(a);
          a[0].x=a[0].x-1;
     public void down(SnakeBit a[])
          move(a);
          a[0].x=a[0].y+1;
     public void move(SnakeBit a[])
          a[6].copy(a[5]);
          a[5].copy(a[4]);
          a[4].copy(a[3]);
          a[3].copy(a[2]);
          a[2].copy(a[1]);
          a[1].copy(a[0]);
}//end of class Snake.
public class Game1 extends Applet //implements KeyListener
     Snake s1;
     SnakeBit aa;
     int sizeOfCell=10; //default=10
     int startX=20; //starting x position of board.default=20
     int startY=20;     //starting y position of board.
     int maxX=200;          //max x value of board, ie width. default=200
     int maxY=200;          //max y value of board ie height.
     boolean drawBoard;
     //int arrays which will store the values of the objects
     int x[]=new int[5];
     int y[]=new int[5];
     public void init()
          s1=new Snake();
          //drawBoard=false;
          //x=s1.getValueX();
          //y=s1.getValueY();
          //aa = s1.a[0];
     public void paint(Graphics g)
     //public void Mpaint(Graphics g, Snake s1)
          //if (drawBoard==false)
               drawBoard=true;
               g.setColor(Color.cyan);
                    for(int i=startX;i<=maxX;i=i+sizeOfCell)
                    for(int j=startY;j<=maxY;j=j+sizeOfCell)
                         g.fillRect(i,j,sizeOfCell,sizeOfCell);
               g.setColor(Color.red);
                              for(int i=startX;i<=maxX;i=i+sizeOfCell)
                              for(int j=startY;j<=maxY;j=j+sizeOfCell)
                                   g.drawRect(i,j,sizeOfCell,sizeOfCell);
          for(int i=0;i<7;i++)
<code>
          g.drawRect(s1.a[0].x * sizeOfCell, s1.a[0].y*sizeOfCell,sizeOfCell,sizeOfCell);
</code>
}//end of class Game.

Answer 1

Those who feel the program is too big to solve,( actually the code is not well written, and documentation is nill)
I will try to explain in my own words.
There are only 3 classes
1)SnakeBit
2)Snake
3)Game
SnakeBits draws a small part of a snake.
Snake draws the whole snake.
In the constructor of the Snake class , one SnakeBit is created.(Actually we create 5 or more, but right now to make the problem clear, I have created only one.)
     SnakeBit a[]=new SnakeBit[5];
     a[0]=new SnakeBit(8,4);
In the game class, a Snake is created.
In the game class, I can access the members of the Snake class. But I cannot access the members of the SnakeBit class.
I need to access the members of the SnakeBit class from the paint method. otherwise How am I going to draw it on the screen.
So tell me a way to do it.
I want to get the x and y variable of the SnakeBit class from the Game class.
Please help.