In Java I did an insert method for my program, but I want to make sure its correct, please check it and fix if theres any errors the code public void insert(E key) throws DuplicateItemException {         BSTNode child = new BSTNode(key);                  if ( root == null ) {             root = child;         }         else {             BSTNode parent = insertionPoint(key);                      }         try {             BSTNode parent = insertionPoint(key);             if (key.compareTo(parent.getKey()) < 0){                 parent.setLeftChild(child);             }             else if (key.compareTo(parent.getKey()) > 0) {                 parent.setRightChild(child);                       }                      }         catch (DuplicateItemException ex) {             throw ex;         }     }

Microsoft Visual C#
7th Edition
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Joyce, Farrell.
Chapter8: Advanced Method Concepts
Section: Chapter Questions
Problem 8E
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In Java

I did an insert method for my program, but I want to make sure its correct, please check it and fix if theres any errors

the code

public void insert(E key) throws DuplicateItemException {
        BSTNode<E> child = new BSTNode(key);
        
        if ( root == null ) {
            root = child;
        }
        else {
            BSTNode<E> parent = insertionPoint(key);
            
        }
        try {
            BSTNode<E> parent = insertionPoint(key);
            if (key.compareTo(parent.getKey()) < 0){
                parent.setLeftChild(child);
            }
            else if (key.compareTo(parent.getKey()) > 0) {
                parent.setRightChild(child);
         
            }
            
        }
        catch (DuplicateItemException ex) {
            throw ex;
        }
    }
    

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