category.add(defaultMutableTreeNode);
defaultMutableTreeNode = new DefaultMutableTreeNode(new ChartInfo("LineChart03 - Extensive Chart Customization", new LineChart03().getChart()));
category.add(defaultMutableTreeNode);
defaultMutableTreeNode = new DefaultMutableTreeNode(new ChartInfo("LineChart04 - Hundreds of Series on One Plot", new LineChart04().getChart()));
category.add(defaultMutableTreeNode);
defaultMutableTreeNode = new DefaultMutableTreeNode(new ChartInfo("LineChart05 - Scatter and Line", new LineChart05().getChart()));
category.add(defaultMutableTreeNode);