How can I hide the cursor?

I want to hide the cursor if the mouse enter some Components or a JFrame.
I tried to find methods to solve my problem, but I failed.
Someone can tall me how to do? Thanks.

One way to do this is to create a custom cursor based on a completely tranparent image. Then when you want to hide the cursor, set the cursor to the transparent one.
==================================================================
* Create a 'hidden' cursor by using a transparent image
* @return the invisible cursor
Cursor createInvisibleCursor()
Dimension bestCursorDim = Toolkit.getDefaultToolkit().getBestCursorSize(2, 2);
BufferedImage transparentImage = new BufferedImage(bestCursorDim.width, bestCursorDim.height, BufferedImage.TYPE_INT_ARGB);
Cursor hiddenCursor = Toolkit.getDefaultToolkit( ).createCustomCursor(transparentImage,
new Point(1, 1),
"HiddenCursor");
return hiddenCursor;

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