The exercises in this section build a menu$-$driven application. This application displays a list of available operations. The user selects which operation to perform. A switch statement then routes the selection to the appropriate method. Along the way you will add in proper exception handling. This is an important step to get right when building any application.

The purpose of the menu application is to perform CRUD operations on a relational database that holds information on DIY projects. Throughout the coming weeks you will add to this application to insert project rows, then materials, steps, and categories. You will fetch projects as a list and fetch an individual project with all the details. You will modify rows and delete an entire project with all associated detail $($child$)$ rows.