java - 2d 图标数组 JAVA 并在 JOptionpane 框中打印

Question

如何创建 2d 图标数组并将其打印在 JOptionPane 框中。到目前为止我已经有了这个，但是当我打印出来时它显示了一堆 BlockEmpty.png

public class iconarray{

public static void main (String [] args)


{
    Icon blockempty = new ImageIcon("BlockEmpty.png");

    Icon Board [] [] = new Icon [8] [8];
    String GameBoard = "";
    for (int count2 = 2; count2 <= 7; count2++)
    {

        for (int count3 = 1; count3 <= 7; count3++)
        {
            Board[count2][count3] = blockempty;
         }
    }
    for (int count2 = 2; count2 <= 7; count2++)
     {
        for (int count3 = 1; count3 <= 7; count3++)
        {
            GameBoard = GameBoard + Board[count2][count3];
        }
        GameBoard = GameBoard + "\n"; 
    }
     JOptionPane.showMessageDialog(null, "", "Connect 4", JOptionPane.PLAIN_MESSAGE, blockempty);
}

}

Answer 1

为了显示图标或图像，您首先需要某种方式来呈现它。 Icon 和 Image 无法自行渲染它们(本身)，但需要另一个可以渲染它们的组件。

还有一件事很多人忘记了，JOptionPane 能够显示组件。

例如:

Icon brick = new ImageIcon(BoardOption.class.getResource("/images.jpg"));
JPanel wall = new JPanel(new GridLayout(8, 8, 0, 0));
JLabel bricks[][] = new JLabel[8][8];

for (int x = 0; x < 8; x++) {
    for (int y = 0; y < 8; y++) {
        bricks[y][x] = new JLabel(brick);
        wall.add(bricks[y][x]);
    }
}

JOptionPane.showMessageDialog(null, wall, "Another brick in the wall", JOptionPane.PLAIN_MESSAGE, null);

看看How to use icons了解更多详情。