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Swing's javax.swing.JList component and JavaFX's javafx.scene.control.ListView control let you customize how their various cells are rendered. In this post, I show you how to accomplish these tasks.

Customizing Cell Rendering in Swing JLists

Q: How do I customize how a JList instance's cells are rendered?

A: Swing provides the javax.swing.ListCellRenderer<E> interface to identify components that can be used as "rubber stamps" to render a JList instance's cells. This interface declares the following method:

Component getListCellRendererComponent(JList<? extends E> list,
                                       E value,
                                       int index,
                                       boolean isSelected,
                                       boolean cellHasFocus)

According to ListCellRenderer's Javadoc, getListCellRendererComponent() returns a java.awt.Component that's configured to display the specified value. The Component's paint() method is then called to render the cell.

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