Problem
1. Modify the grocery List application to add an operation for deleting a list item, given its text content in an Edit Text box from the user. An error message must be produced if the given text is not in the list.
2. Build an application that produces a simple non-personalized greeting to the user. The application must count the number of times it is run and display that number with each execution. This number must be stored using shared preferences between runs of the application.