2D Cell array

    private Cell[][] cells;

    public GridPanel(Crossword c){
        int size = c.size;
        this.setLayout(new GridLayout(size,size));
        cells = new Cell[size][size];
        for(int i=0;i<size;i++){
            for(int j=0;j<size;j++){
                Cell cell = new Cell();
                cells[i][j].add(cell);
            }
        }

    }
}