BTree

public class BTree {

    private TreeNode root;
     private class TreeNode{
         private TreeNode left;
         private TreeNode right;
         private int data;

         public TreeNode(int data)
         {
             this.data=data;
         }
     }
    public void createBinaryTree()
    {
        TreeNode first=new TreeNode(1);
        TreeNode second=new TreeNode(2);
        TreeNode third=new TreeNode(3);
        TreeNode fourth=new TreeNode(4);
        TreeNode fifth=new TreeNode(5);
        //TreeNode sixth=new TreeNode(6);

        root=first; //root
        first.left=second;
        first.right=third; ///second<==first-->third

        second.left=fourth;
        second.right=fifth;


    }

    public static void main(String[] args) {

    }
}