This example describes the Basics for building the Tree Structure using GWT. The steps involved in Building the Tree Structure are described below:-
final Label label = new Label("Click the Node to view Tree
Here we are declaring label. Label is a widget that contains text.
Tree Item root = new TreeItem("Vowels")
Creating tree item i.e. creating root for tree.TreeItem is a class. In this an item can be contained within a tree.
This is the method for adding an item to the root of the tree. Here we are adding a to the tree name "root".
Tree t = new Tree()
Tree is a class and it contains a hierarchy of tree items that user can open and close.
Output of the program
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