So this is a method of mine that is called everytime a new node is added.I need the model cleared everytime.The DefaultListModel has a .clear() method.The DefaultTreeModel does not.Help?
public void fillUserList(){
List<User> userFriends = ClientController.getInstance().getPrieteniiUserului(user);
for(int i=0;i<userFriends.size();i++){
User user = userFriends.get(i);
model.insertNodeInto(new DefaultMutableTreeNode(user.getNume()), root, i);
}
System.out.println(userFriends);
}
I worked it out.The new code looks like this.
public void fillUserList(){
List<User> userFriends = ClientController.getInstance().getPrieteniiUserului(user);
root.removeAllChildren(); //this removes all nodes
model.reload(); //this notifies the listeners and changes the GUI
for(int i=0;i<userFriends.size();i++){
User user = userFriends.get(i);
model.insertNodeInto(new DefaultMutableTreeNode(user.getNume()), root, i);
}
}