CCreate Mirror a BST

[binodrai9]

public class MirroraBST{
static class Node{
int data;
Node left;
Node right;

    public Node (int data){
        this.data = data;
        this.left = this.right = null;
    }

}
public static Node createMirror(Node root){
    if(root==null){
        return null;
    }
    Node leftMirror = createMirror(root.left);
    Node rightMirror = createMirror(root.right);

    root.left = rightMirror;
    root.right = leftMirror;
    return root;
}
public static void preorder(Node root){
    if(root==null){
        return;
    }
    System.out.print(root.data + " ");
    preorder(root.left);
    preorder(root.right);
}
public static void main(String args[]){
    /*
             8
            / \
           5   10
          / \   \
         3   6   11
    
    to
      
             8
            / \
           10  5
          /   /  \
         11   6   3
         mirror bst


     */

    Node root = new Node(8);
    root.left = new Node(5);
    root.right = new Node(10);
    root.left.left = new Node(3);
    root.left.right = new Node(6);
    root.right.right = new Node(11); 

     root = createMirror(root);
     preorder(root);


}

}