Chapter 7: Problem 15

How do you prevent the BorderLayout manager from resizing a component that has been placed in its region?

Short Answer

Expert verified

1. Create a JPanel object which will be used to wrap the component and disable resizing. 2. Set the layout of the created JPanel to BorderLayout to ensure proper alignment of the component within the JPanel. 3. Determine the desired size for the component and set the preferred size accordingly. 4. Add the component to the desired region of the JPanel using the `add` method. 5. Add the JPanel containing the component to the desired region in the main BorderLayout. By following these steps, the BorderLayout manager will only resize the JPanel, keeping the component within it at the set preferred size.

Step by step solution

Creating a JPanel

First, create a new JPanel object. This JPanel will be used to wrap the component and disable resizing. ``` JPanel panel = new JPanel(); ```

Set the layout of the JPanel

Set the layout of the created JPanel to BorderLayout as well. This will ensure proper alignment of the component within the JPanel. ``` panel.setLayout(new BorderLayout()); ```

Set the preferred size for the component

Determine the desired size for the component and set the preferred size accordingly. This will inform the BorderLayout manager about the intended size of the component. ``` component.setPreferredSize(new Dimension(width, height)); ```

Add the component to the JPanel

Add the component to the desired region of the JPanel using the `add` method. This will place the component within a region of the JPanel layout. ``` panel.add(component, BorderLayout.CENTER); ```

Add the JPanel to the main BorderLayout

Finally, add the JPanel containing the component to the desired region in the main BorderLayout. This will ensure that the BorderLayout manager only resizes the JPanel, keeping the component within it at the set preferred size. ``` mainLayout.add(panel, BorderLayout.NORTH); ``` By following these steps, you will have successfully prevented the BorderLayout manager from resizing a component placed in its region.

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How do you prevent the BorderLayout manager from resizing a component that has been placed in its region?

Short Answer

Step by step solution

Creating a JPanel

Set the layout of the JPanel

Set the preferred size for the component

Add the component to the JPanel

Add the JPanel to the main BorderLayout

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