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Adding Node at a given position in Linked List

Adding Node at a given position in Linked List




public void addNodeAtPosition(Node head,int position,int data)
 {
  Node temp=head;
  //create a node
  Node node=new Node(data);
  int c=1;
  //while counter is not equal to the position
  while(c!=position)
  {
   temp=temp.next;
   c++;
  }
  //point node to the next of current node
  node.next=temp.next;
  //point next of current to the node to insert
  temp.next=node;
 }

To Know the basic structure of the linked list click here

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Tree Traversal in JAVA (InOder/preOrder/postOrder)

Tree Traversal in JAVA (InOder/preOrder/postOrder):-

Tree traversal can be done through three ways.

1)Inorder:-

Go recursively to the left node.
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2)Pre Order.

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2)Post Order.


Go recursively to the left node.
Go recursively to the right node.
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publicvoidinorder(Node root){if(root==null){return;} inorder(root.left); System.out.print(root.data+","); inorder(root.right);}publicvoidpreOrder(Node root){if(root==null){return;} System.out.print(root.data+","); preOrder(root.left); preOrder(root.right);}publicvoidpostOrder(Node root){if(root==null){return;} postOrder(root.left); postOrder(root.right); System.out.print(root.data+",");}