public PanelCalendarWeek() {
    /* This panel holds the date */
    innerPanel = new JPanel();
    innerPanel.setBackground(Color.BLACK);
    innerPanel.setBounds(0, 0, 700, 700);
    innerPanel.setPreferredSize(new Dimension(700, 700));
    innerPanel.setLayout(new GridBagLayout());

    /* Create Grid bag containts for the BLACK area */

    GridBagConstraints c = new GridBagConstraints();
    c.anchor = GridBagConstraints.PAGE_END;
    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 0.5;
    c.gridx = 0;
    c.gridy = 0;

    /* Add example panels that would be dates */

    JPanel panel1 = new JPanel();
    panel1.setBorder(BorderFactory.createLineBorder(Color.WHITE, 2));
    panel1.setPreferredSize(new Dimension(1, 200));
    panel1.setBackground(Color.BLUE);

    innerPanel.add(panel1, c);

    /* Create more components in the manner above for example reasons */

    this.addComponentListener(new ComponentListener() {

        @Override
        public void componentResized(ComponentEvent e) {
            innerPanel.setBounds(0, 0, columnView.getWidth(), 1000);
            innerPanel.setPreferredSize(new Dimension(columnView.getWidth(), 1000));
        } // more code omitted for brevitu
    });

    scrollPane = new JScrollPane();
    scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
    scrollPane.getViewport().setLayout(null);
    scrollPane.setViewportView(innerPanel);
    scrollPane.setBounds(0, 0, 400, 400);

    columnView = new JPanel();
    columnView.setBackground(Color.RED);
    columnView.setBounds(0, 0, 200, 50);
    columnView.setPreferredSize(new Dimension(200, 50));
    scrollPane.setColumnHeaderView(columnView);

    rowView = new JPanel(); /* omitted, same process as above */

    this.setLayout(new BorderLayout());
    this.add(scrollPane, BorderLayout.CENTER);
}