Need help with homework: sudoku in Java?

Hi.

I have a Java homework, where I have different steps to create a Sudoku.

It starts with:

public class Sudoku extends Thread{

int thegrid[][];

int n;

int theplace=0;

int thecomplexity=0;

int[][] tableaufinal;

}

Now I am stuck, and I have to implement the "initilization" function, which would initializes the following attributes: thegrid, theplace and thecomplexity.

public Sudoku(int n){

this.n=n;

lagrille=new int[n][n];

initialisation ();

}

So, as I said, I am stuck there. Please help !!