import javax.swing.JFrame;

public class WindowLocationSample2 {
    public WindowLocationSample2() {
        for (int i = 0; i < 5; i++) {
            JFrame frame = new JFrame("Sample");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            frame.setBounds(100, 100, 100, 100);
            
            frame.setLocationByPlatform(true);

            frame.setVisible(true);
        }
    }

    public static void main(String[] args) {
        new WindowLocationSample2();
    }
}