I have been trying to create a calculator in Visual Basic that saves the data to an MS Access database as well as saves it to a local Text, XML or JSON file. I was able to figure out the bulk of it, but am having trouble with these steps. My code so far is at the bottom.

In Visual Basic, perform the following:

Save and retrieve the operations in Ms. Access database

Create a table to save the operations

Create the necessary fields for the table

Create a button to save the content of the listbox to the database

Create a button to retrieve the content of the table into the listbox

The table in the database should not exceed 10 records. When saved, the table should be cleared and replaced with the new operations

When a line from the list box is selected, the user should be able to modify the values/operations and save it to the listbox/database

Save and retrieve operations data from and to XML/JSON files

Create a separate button to Save to file

Create a separate button to Retrieve from file

The file can be Text, XML or JSON

The file must be local to the application or allow the user to navigate to the file

My code wouldn't fit here, but is posted at my previously unanswered question:

https://www.chegg.com/homework-help/questions-and-answers/code-far-option-explicit-option-strict-option-infer-imports-systemdataoledb-public-class-c-q66488520