How to Implement CardLayout in NetBeans GUI Builder?

Using CardLayout with NetBeans GUI Builder

NetBeans GUI Builder offers powerful capabilities for managing layout managers. One such layout is the CardLayout, which allows you to switch seamlessly between different panels within a container. To utilize this layout effectively, follow these steps:

1. Setting the CardLayout

• Create a JPanel and add it to your JFrame.
• Right-click on the JPanel in the Navigator and select "Set Layout -> CardLayout."

2. Adding Panels to the CardLayout

• Right-click on the main JPanel and add multiple JPanels to serve as cards within the layout.

3. Identifying Each Panel Card

• Double-click on each added JPanel.
• Drag and drop a JLabel onto each panel and specify its text to identify the panel.
• In the Properties pane, set the "Card Name" property to a unique identifier for each panel.

4. Changing Card Positions

• Right-click on the main JPanel and select "Change Order."
• Reorder the panels as desired to determine their initial visibility.

5. Adding Action Listeners

• Double-click on the JFrame form.
• Right-click on each button that will switch between panels.
• Select "Events -> Action -> actionPerformed."
• Add code to each button's actionPerformed method to show the corresponding panel using the CardLayout's show method:

<code class="java">CardLayout card = (CardLayout)mainPanel.getLayout();
card.show(mainPanel, "panelName");</code>

Additional Notes:

• It's possible to drag and drop existing JPanel classes onto the main JPanel to create cards dynamically.
• Custom JPanel classes can be created to further separate concerns and avoid large, monolithic classes.

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