How can I expand a JTree when I single-click on the icon of a node?

Urmila Kulkarni

The answer is: In mouseClicked() method write tree.Expand() & tree.Collapse() method. code for that:

public void mouseClicked(MouseEvent e){
  if(jTree.isCollapsed(jTree.getRowForLocation(e.getX(),e.getY()))) {
  else {
}  //mouseclick
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