Мне нужно заполнить JTable статическим 2D-массивом. Я'мы создали эту модель для:JTable

 public class InsertMatToJTable extends AbstractTableModel{

   String titre[] = {"age real", "sex real", "chest real", "resting_blood_pressure real","serum_cholestoral real","fasting_blood_sugar real","resting_electrocardiographic_results real","maximum_heart_rate_achieved real","exercise_induced_angina real","oldpeak real","slope real","number_of_major_vessels real","thal real", "class"};

   String line;

    float mat[][]= new float[270][13];

    float matrice_normalise[][];

    int i = 0,j=0;

    public void InsertMatToJTable()
    {

try {
        FileInputStream fis = new FileInputStream("fichier.txt");
            BufferedReader br = new BufferedReader(new InputStreamReader(fis));

            while ((line = br.readLine()) != null) {
                            StringTokenizer st1 = new StringTokenizer(line, " ");
                            while (st1.hasMoreTokens())
                            {mat[i][j]=Float.valueOf(st1.nextToken()).floatValue(); 
                                                        j++;

                           if (st1.hasMoreTokens()!=true)   i++;
                            }      
            }
            br.close();
      }catch(Exception e) {
                    e.printStackTrace();}

      Normalisation norm = new Normalisation(mat);

   // for(i=0;i