4.3 create mini BST from sorted array

TreeNode createminiBST(int arr[], int left, int righ){
  
if(left> right) return null;

int mid= (left+right)/2;
TreeNode r=new TreeNode(arr[mid]);
r.left=createminiBST(arr, left, mid-1);
r.right=createminiBST(arr,mid, righ);

return r;


}
void creatBST(int[] arr){
creatminiBST(arr, 0, arr.length-1);

}