Here’s how you can use the expand and collapse node icons (on a JTree)
from the Windows “look and feel” within another look and feel.
Place the following lines at the beginning of your application:
UIManager.put("Tree.expandedIcon", new WindowsTreeUI.ExpandedIcon()); UIManager.put("Tree.collapsedIcon", new WindowsTreeUI.CollapsedIcon());
Also, include the following import in the class:
Any JTree objects will now use the plus and minus icons!
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