Final answer:
The SQLiteOpenHelper class provides the onCreate and onUpgrade methods for database creation and upgrade in Android development.
Step-by-step explanation:
The SQLiteOpenHelper class provides the onCreate and onUpgrade methods that are used to create and upgrade the database in Android app development.
The onCreate method is called when the database is created for the first time. This is where you can create tables and populate them with initial data.
The onUpgrade method is used to upgrade the database when the app version changes and it includes logic to update the database schema without losing the data.
For example, in the onUpgrade method, you might use SQL commands to add new columns to a table or to drop and recreate a table if the updates are complex. It's important to properly manage the database versions to prevent data loss during an app upgrade.