e577. Enabling Antialiasing

// See 

    public void paint(Graphics g) {

        // Retrieve the graphics context; this object is used to paint shapes

        Graphics2D g2d = (Graphics2D)g;

        // Determine if antialiasing is enabled

        RenderingHints rhints = g2d.getRenderingHints();

        boolean antialiasOn = rhints.containsValue(RenderingHints.VALUE_ANTIALIAS_ON);

        // Enable antialiasing for shapes

        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

                             RenderingHints.VALUE_ANTIALIAS_ON);

        // Disable antialiasing for shapes

        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

                             RenderingHints.VALUE_ANTIALIAS_OFF);

        // Draw shapes...; see 

        // Enable antialiasing for text

        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                             RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

        // Draw text...; see 

        // Disable antialiasing for text

        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                             RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

    }

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