Develop a contact management app version 1:

The main activity would start with no contact, but it has a button where the user could use to add a new contact

On clicking an Add Contact button in the main activity, it goes to the second activity, where the user could add the contact information such as name, phone number, email, etc.

After entering a new contact, the user could click the submit button in the second activity, which the second activity will be closed, and the app goes back to the main activity

The main activity now should display the new contact information