Level Order Traversal
Level order traversal is the method used to the traverse the binary tree and it can visiting the level by level from left to right. It can uses the queue data structure to the keep track of the nodes to be visited.
The Algorithm is as follows:
- Enqueue the root node.
- While the queue is not empty then dequeue the node and visit it.
- Enqueue its the left child(if its exists)
- Enqueue its the right child(if its exists)
- Repeat the steps 2-4 until the queue is empty.
Level Order Traversal of a Binary Tree in Java
Binary Tree is a hierarchical data structure in which each node has at most two children and it can referred to as the left child and right child. It is called a tree because it resembles an inverted tree with the root at the top and branches extending downward.
In this article, we will learn to perform the Level Order Traversal of a Binary Tree.