Java tutorial
import javax.swing.Icon; import javax.swing.JLabel; import javax.swing.JSpinner; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; class IconEditor extends JLabel implements ChangeListener { JSpinner spinner; Icon icon; public IconEditor(JSpinner s) { super((Icon) s.getValue(), CENTER); icon = (Icon) s.getValue(); spinner = s; spinner.addChangeListener(this); } public void stateChanged(ChangeEvent ce) { icon = (Icon) spinner.getValue(); setIcon(icon); } public JSpinner getSpinner() { return spinner; } public Icon getIcon() { return icon; } }