MouseEvent.getXOnScreen() has the following syntax.
public int getXOnScreen()
In the following code shows how to use MouseEvent.getXOnScreen() method.
//w w w.j a v a2 s .co m import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class Main extends JPanel { JButton button = new JButton("click frame not me"); public Main() { setLayout(null); add(button); button.setSize(button.getPreferredSize()); button.setLocation(20, 20); addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent event) { System.out.println(event.getXOnScreen()); } }); } public static void main(String[] args) { JFrame frame = new JFrame("MoveButton"); frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); frame.setSize(250, 200); frame.setLocation(200, 200); frame.setContentPane(new Main()); frame.setVisible(true); } }