java - Change the icon of Jtree Root Node -


below code have created jtree root node "data generation..

rootnode = new defaultmutabletreenode("data generation"); treemodel =new defaulttreemodel(rootnode); tree = new jtree(treemodel);             tree.seteditable(true);

i have changed icon images leaf node 

childnode=new defaultmutabletreenode(existingtagnames.get(len).tostring()); defaulttreecellrenderer renderer = (defaulttreecellrenderer) tree.getcellrenderer(); imageicon imageicon = new imageicon(generate_explorer.class.getresource("/org/qmon/generate/images/leaf node.png")); renderer.setleaficon(imageicon); tree.setcellrenderer(renderer);

i dont know how root node.. searched in internet unable find it.

thanks in advance.

if use these 2 methods on renderer, should set icon on non-leaf nodes.

setclosedicon(icon newicon)  setopenicon(icon icon)

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