I would like to implement a list of interactive buttons using Swing. It is something similar as on the picture (from NetBeans UI designer):

You can drag and drop the items to a canvas, or single click on the item and then single click on the canvas. However, I don’t know which swing components I should use. Are that JList or JButtons or something different?
There is a tutorial avalaible on how to achieve such functionality. It is utilizing the NetBeans Palette API, which makes you dependent on NetBeans as Framework, not IDE.