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Categories / Java Tutorial / Swing

 

Preventing the Expansion or Collapse of a Node in a JTree Component

import javax.swing.JTree; import javax.swing.tree.TreePath; public class Main {   public static void main(String[] argv) {     JTree tree = new JTree() {       protected void setExpandedState(TreePath path, boolean state) {         if (state) {           super.setExpandedState(path, state);         }       }     };   } }