Java check if two rectangles overlap at any point

Question

I have multiple rectangles and one special rectangle: the selection rect. I want to check for each rectangle if the rectangle contains at least one point which is inside the

Answer 1

If the first one implements RectangularShape and the second one is a Rectangle2D, you can simply use RectangularShape.intersects:

selectionRectangle.intersects(otherRectangle)

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Tests if the interior of the Shape intersects the interior of a specified Rectangle2D

^{From the Oracle Java docs}