Adding up color values??

public class Buttons extends JFrame {
	JButton[][] buttonColor = new JButton[ 10][10];
	Color[][] randColor = new Color[10][10];	
	public Buttons() {
		setSize(800, 600);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		getContentPane().setLayout(new GridLayout(10, 10));		
		for(int i = 0; i < buttonColor.length; i++) {
			for( int o = 0; o < buttonColor[i].length; o++) {
				buttonColor[i][o] = new JButton();
				buttonColor[i][o].addMouseListener(new click());
			
				getContentPane().add(buttonColor[i][o]);
			}
		}
		setVisible(true);
	}

	
	private class click extends MouseAdapter {
		public void mouseClicked(MouseEvent e) {
		 JButton pressed = (JButton)e.getSource(); 
		 pressed.setBackground(randColor());
                 /This part doesnt work, but is just a hypothetical on my part.
                 if(ButtonIsclicked) {
                    int average = red + green + blue;
		}
	}

	public Color randColor() {
		int red = (int)(Math.random()*256);
		int blue = (int)(Math.random()* 256);
		int green = (int)(Math.random()*256);
		
		return new Color(red, green, blue);
	}
		
	
	public static void main(String[] args) {
		new Buttons();
	}
}