Java SE (Java Platform, Standard Edition)

Hi,

I am trying to create a JButton with a semi-transparent background. I created my own subclass, and overrode the paintComponent() method like this:

	public void paintComponent(Graphics g)
	{
		g.setColor(getBackground());
		g.fillRect(0, 0, getWidth(), getHeight());
		
		super.paintComponent(g);
	}

I am setting the color of it to white, with an alpha value of 100, but the background is behaving very oddly. What am I doing wrong? Thanks ahead of time.