如何在 Java AWT 和/或 Swing 中更改光标图像？

I'm making a simple graphics editor (i.e a paint program). I am not planning on anything fancy, but I do want my program to change the mouse cursor to something like a "+" or an "O" when it enters the Paint Panel. like in Photoshop or GIMP.

我该怎么做？我在 AWT / Swing 线程中找不到有关如何更改鼠标光标的任何内容。

以防万一有人想要比任何默认光标更“奇特”的东西：可以创建一个显示任意自定义图像的自定义光标（如果工具包支持它）。一个粗略的（没有闪亮的视觉效果）示例：

    Toolkit kit = Toolkit.getDefaultToolkit();
    Dimension dim = kit.getBestCursorSize(48, 48);
    BufferedImage buffered = GraphicsUtilities.createCompatibleTranslucentImage(dim.width, dim.height);
    Shape circle = new Ellipse2D.Float(0, 0, dim.width - 1, dim.height - 1);
    Graphics2D g = buffered.createGraphics();
    g.setColor(Color.BLUE);
    g.draw(circle);
    g.setColor(Color.RED);
    int centerX = (dim.width - 1) /2;
    int centerY = (dim.height - 1) / 2;
    g.drawLine(centerX, 0, centerX, dim.height - 1);
    g.drawLine(0, centerY, dim.height - 1, centerY);
    g.dispose();
    Cursor cursor = kit.createCustomCursor(buffered, new Point(centerX, centerY), "myCursor");