Update hedera/core-concepts/high-volume-entity-creation.mdx

Co-authored-by: Joseph S. <121976561+jsync-swirlds@users.noreply.github.com>
Signed-off-by: krystal <56278409+theekrystallee@users.noreply.github.com>

Author: theekrystallee

hedera/core-concepts/high-volume-entity-creation.mdx

@@ -200,7 +200,11 @@ AccountCreateTransaction tx = new AccountCreateTransaction()
 
 TransactionResponse response = tx.execute(client);
 TransactionReceipt receipt = response.getReceipt(client);
-AccountId newAccountId = receipt.accountId;
+if (transactionSucceeded(receipt)) {
+    AccountId newAccountId = receipt.accountId;
+
+    System.out.println("Account created: " + newAccountId);
+}
 
 System.out.println("Account created: " + newAccountId);
 ```