Question

I’m trying to draw Polygons and would like to be able to click on my Frame to get MouseCoordinates so as to turn a mental Image into x/y values more quickly.

I’m using

System.out.println("("+ MouseInfo.getPointerInfo().getLocation().x +",
    "+ MouseInfo.getPointerInfo().getLocation().y +")"); 

but this give me coordinates relative to my actual screen, and not my java window.

How can I make the coordinates show up relative to the Java Window?

Answer 1

I suppose you add a MouseListener to your frame? Then you can just get the relative coordinates with MouseEvent.getPoint

frame.addMouseListener(new MouseAdapter() {
    void mouseClicked(MouseEvent e) {
        System.out.println(e.getPoint());
    }
});