Tree Traversal In-order Level-order Jun Zhang. Leetcode Binary Tree Inorder Traversal Java. Tree Traversals explained They're like a class of lazy students. Tree Traversal Magadh University. If its position against it visited and science, we first step is in tree. Breadth-first level-order visit nodes level by level c Tim French CITS2200 Tree and Graph Traversals Slide 2 11 Depth-first Traversal Preorder Traversal. Tree Traversals Inorder Preorder Postorder Technicalsand. Level Order traversal Create empty queue and pust root node to it Do the following when queue is not empty Pop a node from queue and print it Push left child.