## How do I print a binary search tree?

You start traversal from the root then go to the left node, then again go to the left node until you reach a leaf node. At that point in time, you print the value of the node or mark it visited and moves to the right subtree. Continuing the same algorithm until all nodes of the binary tree are visited.

### How do you print all nodes from a binary tree?

Printing leaf nodes of binary tree using Iteration

- Create a Stack and push the root node.
- loop until Stack is not empty.
- Call Stack.pop() to get the last element and store its left and right child if they are not null.
- if both left and right child of the last node is null then it’s a leaf node, print its value.

**What are the 3 ways to print a binary search tree?**

The in-order traversal is one of the three popular ways to traverse a binary tree data structure, the other two being the pre-order and post-order. During the in-order traversal algorithm, the left subtree is explored first, followed by the root, and finally the nodes in the right subtree.

**What is Rightview of binary tree?**

Right view of a Binary Tree is set of nodes visible when tree is visited from Right side.

## How do you code a tree in Java?

To build a tree in Java, for example, we start with the root node. Node root = new Node<>(“root”); Once we have our root, we can add our first child node using addChild , which adds a child node and assigns it to a parent node. We refer to this process as insertion (adding nodes) and deletion (removing nodes).

### How do you print a level of a tree?

Algorithm to print level of all nodes of binary tree

- Traverse binary tree using pre Order traversal.
- If root is equal to NULL, return.
- Print level of current node.
- Recursively print the level of nodes in left and right sub tree by incrementing level.

**How do you find the number of nodes at a binary tree?**

1) The maximum number of nodes at level ‘l’ of a binary tree is 2l-1. Here level is number of nodes on path from root to the node (including root and node). Level of root is 1. This can be proved by induction.

**What is top view of binary tree?**

Top view of a binary tree is the set of nodes visible when the tree is viewed from the top. Given a binary tree, print the top view of it. The output nodes can be printed in any order. A node x is there in output if x is the topmost node at its horizontal distance.

## What is diameter of binary tree?

The diameter of a binary tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root .

### How do I print a linked list element?

Print LinkedList using a for loop The most common method of printing out elements in a List is by using a for-loop. Since LinkedList is an implementation of a List, we can use a for loop to get elements that are stored in each index of the LinkedList.

**How do you print alternate nodes from a linked list?**

Algorithm to print alternate nodes of linked list

- Initialize an integer variable “counter” with 0.
- Using a while loop, we will traverse linked list from head node till (head !=
- For every node we will check if value of counter is even(counter%2 == 0) then print current node otherwise continue.

**What is a binary search tree?**

Well, binary search trees or BST are a special variant of trees that come with a very unique condition for filling in the left and right children of every node in the tree. In order to understand the basics of the binary search tree, one needs to understand the basics of a binary tree first.

## How do you insert a node in a binary search tree?

Insertion in a tree should be such that it obeys the main properties of the binary search tree. The basic algorithm should be:- 1) If the node to be inserted is greater than the existing root, move down a level through the right pointer of the root.

### How do you traversal a binary tree?

You start traversal from the root then go to the left node, then again go to the left node until you reach a leaf node. At that point in time, you print the value of the node or mark it visited and moves to the right subtree. Continuing the same algorithm until all nodes of the binary tree are visited.

**How easy is it to solve binary tree problems in Java?**

If you have some experience in solving binary tree-based problems then it’s rather easy to solve because, like many other binary tree algorithms, you can use recursion to print all leaf nodes of a binary tree in Java. Since the tree is a recursive data structure, you can apply the same algorithm to both the left and right subtree.

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