如何在JTree中将任何节点作为父节点，以便可以向其添加子节点？

Question

How to make current node in JTree as parent node so as to add children to it. My complete data are fetched from the database.

somewhat like below :

root-- parent1 - children
    |- parent2 - children

I need to dynamically generate the tree

Thanks in advance :)

Answer 1

If your nodes are MutableTreeNode eg DefaultMutableTreeNode use

public void insert(MutableTreeNode newChild, int childIndex) 

method to add children to current node

Answer 2

The usual way to construct a tree is to construct a hierarchy of DefaultMutableTreeNode instances. This class has an add(MutableTreeNode newChild) method which allows adding a child to an existing node.

Answer 3

i think this link is what you are looking for: look under

Dynamically Changing a Tree

for a very instructive example, directly from Sun itself!