我怎样才能做网格和绘制单元格

Question

我想做一个游戏（海战）玩家vs Cpu，cpu vs cpu。但我不知道如何做网格和绘制细胞。 我试试这个。

public class TestPane extends JPanel {

    public TestPane() {
        setLayout(new GridBagLayout());

        GridBagConstraints gbc = new GridBagConstraints();
        for (int row = 0; row < 10; row++) {
            for (int col = 0; col < 10; col++) {
                gbc.gridx = col;
                gbc.gridy = row;

                CellPane cellPane = new CellPane();
                Border border = null;
                if (row < 4) {
                    if (col < 4) {
                        border = new MatteBorder(1, 1, 0, 0, Color.GRAY);
                    } else {
                        border = new MatteBorder(1, 1, 0, 1, Color.GRAY);
                    }
                } else {
                    if (col < 4) {
                        border = new MatteBorder(1, 1, 1, 0, Color.GRAY);
                    } else {
                        border = new MatteBorder(1, 1, 1, 1, Color.GRAY);
                    }
                }
                cellPane.setBorder(border);
                add(cellPane, gbc);
            }
        }
    }
}

感谢。