@@ -0,0 +1,140 @@
+package com.dw.swing;%0A%0Apublic class JTreeComponent %7B%0A%0A%09public static void main(String%5B%5D args) %7B%0A%09%09// TODO Auto-generated method stub%0A%0A%09%7D%0A%0A%7D%0A

add empty JTreeComponent