In this section, you will learn about JTree Action Listener and its implementations.
The following program constructs a tree on the frame containing tree with root node and a command button ("Add"). Whenever you click the "Add" button, every time the ActionListener is called to perform the action using actionPerformed() method. The actionPerformed() method adds nodes in JTree. The insertNodeInto() Method adds a new child at specified location in JTree.
Here is the code of program:
Output of the program:
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