问java -检测不带mousePressed的mouseReleased

EN

titleBar.addMouseListener(new MouseListener()
{
    @Override public void mouseReleased(MouseEvent e)
    {
        System.out.println("cool");//Detect this
    }
    @Override public void mousePressed(MouseEvent e)
    {
        System.out.print("Not ");//Without this having to happen first
    }
    @Override public void mouseExited(MouseEvent e)
    {
    }
    @Override public void mouseEntered(MouseEvent e)
    {
    }
    @Override public void mouseClicked(MouseEvent e)
    {
    }
});