Sudoku GUI Java

Question

I'm trying to make a dynamic sudoku gui with java, the thing is that I can't seem to get the textfields in the right panels if someone could help me or maybe suggest a better solution to this I would be greatful. The problem is that I only get the textfields in the last panel(at the button to the right). In all the other panels I dont get any textfields, dont know why :P

class Sudoku extends JPanel{
private JTextField textfields[][];  
private JPanel panels[][];

public Sudoku(int height, int weight, int dimension){
    super();
    panels = new JPanel[dimension][dimension];
    textfields = new JTextField[dimension][dimension];

    setLayout(new GridLayout());
    setForeground(Color.black);
    setBackground(Color.white);
    for (int i = 0;i <= dimension-1;i++ ) {
        for (int j = 0;j <= dimension-1;j++ ) {
            textfields[i][j] = new JTextField(1);
            textfields[i][j].setBackground(Color.YELLOW);
        }
    }

    for (int i = 0;i <= weight;i++ ) {
        for (int j = 0;j <= weight;j++ ) {
            panels[i][j] = new JPanel(new GridLayout(weight, weight));
        }
    }
    setLayout(new GridLayout(weight,weight,10,10));
    setForeground(Color.BLACK);

    for (int i = 0;i <= height-1 ;i++ ) {
        for (int j = 0;j <= weight-1 ;j++ ) {
            for (int k = 0;k <= height-1 ;k++ ) {
                for (int l = 0;l <= weight-1 ;l++ ) {
                    textfields[l][k].setEditable(false);
                    panels[i][j].add(textfields[l][k]);
                }
            }
            add(panels[i][j]);
        }
    }


}
}